feat: implements Signaling Data Flow Controller

[wolf4ood]

What this PR changes/adds

Introduces a new module transfer-data-plane-signaling that contains a new DataFlowController
compliant with the data plane signaling spec.

This is additive and does not impact the current DataFlowControllers.

A first E2E test with PUSH scenario was also implemented using the data plane signaling protocol.
For making the test work the transformer for the DataAddress for the client -> api communicantion
where reverted to EDC one.

Why it does that

data plane signaling

Further notes

For having a E2E test with PULL scenario we have to tackle the following topics

• DataAddress format dspace vs edc #dataaddress in the signaling protocol (relates to DSP 1.0: align DataAddress type with the new structure #3841)
• EDR generator for http pull scenario destination type
• DataPlaneManagerImpl refactor (move the EDR generator here)
• EDR receiver for the dspace format #EDR DPS: implements an EDR receiver compliant with the signaling spec #3968 (optional use callbacks)

Linked Issue(s)

Closes #3901

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 95.31250% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 73.39%. Comparing base (7f20ba5) to head (6195da8).
Report is 125 commits behind head on main.

Files	Patch %	Lines
...taplane/flow/DataPlaneSignalingFlowController.java	98.03%	0 Missing and 1 partial ⚠️
...figuration/SignalingApiConfigurationExtension.java	0.00%	1 Missing ⚠️
...controller/v1/DataPlaneSignalingApiController.java	87.50%	0 Missing and 1 partial ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3970      +/-   ##
==========================================
+ Coverage   71.74%   73.39%   +1.64%     
==========================================
  Files         919      965      +46     
  Lines       18457    19448     +991     
  Branches     1037     1098      +61     
==========================================
+ Hits        13242    14273    +1031     
+ Misses       4756     4709      -47     
- Partials      459      466       +7     

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