UHF multi detector: implement fast poll of multiple UHFs

[ysalatheZI]

Please use the following template for a pull request.

Loop over detectors in the inner-most poll loop in the UHF multi detector.

@leodicarlo , @mariosk-zi

In order for the pull request to be merged, the following conditions must be met:

• test suite (Github actions) passes
• all reasonable issues raised by codacy must be resolved
• a positive review is required

Whenever possible the pull request should

• follow the PEP8 style guide
• have tests for the code
• be well documented and contain comments

Tests are not mandatory as this is generally hard to make for instruments that interact with hardware.

[ysalatheZI]

This pull request is ready for review.

[MiniSean]

@RuggeroDiCarlo and @leodicarlo, what is the status of these changes? Have they already been tested on the Inspire setup?

[MiniSean]

After talking with @RuggeroDiCarlo I understand that there are two (identical) instances of this code. One existing in this PR, and one already existing on the Inspire setup (not yet pushed to the inspire_detached branch). After doing a branch comparison (for the relevant file UHFQC.py) both are indeed identical and working as intended.

Naturally I rather not push changes this way since it is very sensitive to errors and merge conflicts. But we can make an exception for this PR.