…p and simulate_and_vjp

…ne-lightning into kokkosNewAPI_backend

…ld API

Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Amintor Dusko <[email protected]>

### Before submitting

Please complete the following checklist when submitting a PR:

- [X] All new features must include a unit test.
If you've fixed a bug or added code that should be tested, add a test to
the
      [`tests`](../tests) directory!

- [X] All new functions and code must be clearly commented and
documented.
If you do make documentation changes, make sure that the docs build and
      render correctly by running `make docs`.

- [X] Ensure that the test suite passes, by running `make test`.

- [ ] Add a new entry to the `.github/CHANGELOG.md` file, summarizing
the
      change, and including a link back to the PR.

- [X] Ensure that code is properly formatted by running `make format`. 

When all the above are checked, delete everything above the dashed
line and fill in the pull request template.


------------------------------------------------------------------------------------------------------------

**Context:**
Migrate the lightning.kokkos device to the new device API.

**Description of the Change:**
The 'simulate' method is necessary to achieve full functionality with
the new device API.
We are going to follow the same recipe used with LightningQubit.

**Benefits:**
Add one of the essential methods for the new device API into
LightningKokkos.

**Possible Drawbacks:**

**Related GitHub Issues:**
## Partial / Freezzed PR ⚠️ ❄️

To make a smooth integration of LightningKokkos with the new device API,
we set the branch `kokkosNewAPI_backend` as the base branch target for
this development.

The branch `kokkosNewAPI_backend` has the mock of all classes and
methods necessary for the new API. Also, several tests were disabled
with

``` python
if device_name == "lightning.kokkos":
    pytest.skip("Kokkos new API in WIP.  Skipping.",allow_module_level=True)
```

Additionally, the CI testing from PennyLane for LKokkos is temporally
disabled through commenting the following lines in `.github/workflows`
files
``` yml
: # pl-device-test --device ${DEVICENAME} --skip-ops --shots=20000 $COVERAGE_FLAGS --cov-append
: # pl-device-test --device ${DEVICENAME} --shots=None --skip-ops $COVERAGE_FLAGS --cov-append
```

However, these tests will unblocked as the implementation progresses.

After all the developments for integrating LightningKokkos with the new
API have been completed then the PR will be open to merge to master

[sc-68801]

---------

Co-authored-by: Vincent Michaud-Rioux <[email protected]>
Co-authored-by: Ali Asadi <[email protected]>

### Before submitting

Please complete the following checklist when submitting a PR:

- [X] All new features must include a unit test.
If you've fixed a bug or added code that should be tested, add a test to
the
      [`tests`](../tests) directory!

- [X] All new functions and code must be clearly commented and
documented.
If you do make documentation changes, make sure that the docs build and
      render correctly by running `make docs`.

- [X] Ensure that the test suite passes, by running `make test`.

- [ ] Add a new entry to the `.github/CHANGELOG.md` file, summarizing
the
      change, and including a link back to the PR.

- [X] Ensure that code is properly formatted by running `make format`. 

When all the above are checked, delete everything above the dashed
line and fill in the pull request template.


------------------------------------------------------------------------------------------------------------

**Context:**
Migrate the lightning.kokkos device to the new device API.

**Description of the Change:**
The 'jacobian' and vjp` methods are necessary to achieve full
functionality with the new device API.
We are going to follow the same recipe used with LightningQubit.

**Benefits:**
Add two of the essential methods for the new device API into
LightningKokkos.

**Possible Drawbacks:**

**Related GitHub Issues:**
## Partial / Freezzed PR ⚠️ ❄️

To make a smooth integration of LightningKokkos with the new device API,
we set the branch kokkosNewAPI_backend as the base branch target for
this development.

The branch kokkosNewAPI_backend has the mock of all classes and methods
necessary for the new API. Also, several tests were disabled with

```python
if device_name == "lightning.kokkos":
    pytest.skip("Kokkos new API in WIP.  Skipping.",allow_module_level=True)
```

Additionally, the CI testing from PennyLane for LKokkos is temporally
disabled through commenting on the following lines in .github/workflows
files

```bash
: # pl-device-test --device ${DEVICENAME} --skip-ops --shots=20000 $COVERAGE_FLAGS --cov-append
: # pl-device-test --device ${DEVICENAME} --shots=None --skip-ops $COVERAGE_FLAGS --cov-append
```

However, these tests will unblocked as the implementation progresses.

After all the developments for integrating LightningKokkos with the new
API have been completed then the PR will be open to merging to master

[sc-68808] [sc-68814]

---------

Co-authored-by: Vincent Michaud-Rioux <[email protected]>
Co-authored-by: Ali Asadi <[email protected]>

…836)

### Before submitting

Please complete the following checklist when submitting a PR:

- [X] All new features must include a unit test.
If you've fixed a bug or added code that should be tested, add a test to
the
      [`tests`](../tests) directory!

- [X] All new functions and code must be clearly commented and
documented.
If you do make documentation changes, make sure that the docs build and
      render correctly by running `make docs`.

- [X] Ensure that the test suite passes, by running `make test`.

- [ ] Add a new entry to the `.github/CHANGELOG.md` file, summarizing
the
      change, and including a link back to the PR.

- [X] Ensure that code is properly formatted by running `make format`. 

When all the above are checked, delete everything above the dashed
line and fill in the pull request template.


------------------------------------------------------------------------------------------------------------

**Context:**
Migrate the lightning.kokkos device to the new device API.

**Description of the Change:**
Add the necessary method for the LightningKokkos that allows the use of
new device API. It should have a similar structure as the LightningQubit
class.

Note: Lightning Kokkos does not support MCMC sampling.

**Benefits:**
Integration of LighntingKokkos with the new device API.

**Possible Drawbacks:**

**Related GitHub Issues:**
## Partial / Freezzed PR ⚠️ ❄️

To make a smooth integration of LightningKokkos with the new device API,
we set the branch `kokkosNewAPI_backend` as the base branch target for
this development.

The branch `kokkosNewAPI_backend` has the mock of all classes and
methods necessary for the new API. Also, several tests were disabled
with

```python
if device_name == "lightning.kokkos":
    pytest.skip("Kokkos new API in WIP.  Skipping.",allow_module_level=True)
```

Additionally, the CI testing from PennyLane for LKokkos is temporally
disabled through commenting on the following lines in .github/workflows
files

```
: # pl-device-test --device ${DEVICENAME} --skip-ops --shots=20000 $COVERAGE_FLAGS --cov-append
: # pl-device-test --device ${DEVICENAME} --shots=None --skip-ops $COVERAGE_FLAGS --cov-append
```

However, these tests will unblocked as the implementation progresses.

After all the developments for integrating LightningKokkos with the new
API have been completed then the PR will be open to merging to master

[sc-68820]

---------

Co-authored-by: Vincent Michaud-Rioux <[email protected]>
Co-authored-by: Ali Asadi <[email protected]>
Co-authored-by: Amintor Dusko <[email protected]>

### Before submitting

Please complete the following checklist when submitting a PR:

- [X] All new features must include a unit test.
If you've fixed a bug or added code that should be tested, add a test to
the
      [`tests`](../tests) directory!

- [X] All new functions and code must be clearly commented and
documented.
If you do make documentation changes, make sure that the docs build and
      render correctly by running `make docs`.

- [X] Ensure that the test suite passes, by running `make test`.

- [ ] Add a new entry to the `.github/CHANGELOG.md` file, summarizing
the
      change, and including a link back to the PR.

- [X] Ensure that code is properly formatted by running `make format`. 

When all the above are checked, delete everything above the dashed
line and fill in the pull request template.


------------------------------------------------------------------------------------------------------------

**Context:**
Migrate the lightning.kokkos device to the new device API.

**Description of the Change:**
Unlock and modify all the unit tests for `Lightning Kokkos` and pass all
the CI.

**Benefits:**
Integration of LighntingKokkos with the new device API.

**Possible Drawbacks:**

**Related GitHub Issues:**
## Partial / Freezzed PR ⚠️ ❄️

To make a smooth integration of LightningKokkos with the new device API,
we set the branch `kokkosNewAPI_backend` as the base branch target for
this development.

The branch `kokkosNewAPI_backend` has the mock of all classes and
methods necessary for the new API. Also, several tests were disabled
with

```python
if device_name == "lightning.kokkos":
    pytest.skip("Kokkos new API in WIP.  Skipping.",allow_module_level=True)
```

Additionally, the CI testing from PennyLane for LKokkos is temporally
disabled through commenting on the following lines in .github/workflows
files

```
: # pl-device-test --device ${DEVICENAME} --skip-ops --shots=20000 $COVERAGE_FLAGS --cov-append
: # pl-device-test --device ${DEVICENAME} --shots=None --skip-ops $COVERAGE_FLAGS --cov-append
```

However, these tests will unblocked as the implementation progresses.

After all the developments for integrating LightningKokkos with the new
API have been completed then the PR will be open to merging to master


[sc-68823]

---------

Co-authored-by: Vincent Michaud-Rioux <[email protected]>
Co-authored-by: Ali Asadi <[email protected]>
Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Vincent Michaud-Rioux <[email protected]>

…ne-lightning into kokkosNewAPI_backend

Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Amintor Dusko <[email protected]>

Co-authored-by: Amintor Dusko <[email protected]>

…ne-lightning into kokkosNewAPI_backend

…nftest

…ne-lightning into kokkosNewAPI_backend