Develop image-based autofocus for LS arm

[ieivanov]

The Nikon PFS hardware autofocus can maintain a constant distance between the O1 objective and the sample. However, element in both the LF and LS remote refocus arms can drift over time, causing focal shifts in both arms. We will likely need image-based autofocus to re-position O3 in the LS arm and the scan mirror in the LF arm (both of which have motorized coarse stages). This autofocus will likely need to run only once every 30-60 min depending on the drift we observe.

[mattersoflight]

@ieivanov and I just discussed this offline. We can work on this after the other four issues.

[ieivanov]

I have now observed that the remote refocus arms do defocus after 1-2 hours even when PFS is engaged. The issue is more pronounced in the LS arm, but may be resolved with algorithms that @talonchandler has developed. Autofocus will require moving the Thorlabs PZA13 stages (with KIM001 controller) in one of the following ways:

https://github.com/Thorlabs/Motion_Control_Examples/blob/main/Python/KCube/KIM101/kim101_pythonnet.py
https://pylablib.readthedocs.io/en/latest/
https://pypi.org/project/thorlabs-apt-device/

Controlling these stages may be more convenient using copylot, but this is not strictly necessary.

[edyoshikun]

I just implemented a prototype for the KDC101 (photom stage) and something for the KIM101 (mantis objective stages) using the thorlabs API.
here. This PR is still missing testing in person and edge case testing.