Update microscope.py

[AdvancedImagingUTSW]

Added type annotations, and extracted a few methods to make some of the code a bit more readable.

[codecov]

Codecov Report

Attention: Patch coverage is 84.78261% with 7 lines in your changes missing coverage. Please review.

Project coverage is 54.31%. Comparing base (365fbad) to head (422f5ea).
Report is 8 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/navigate/model/microscope.py	84.78%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1026      +/-   ##
===========================================
+ Coverage    54.30%   54.31%   +0.01%     
===========================================
  Files          180      180              
  Lines        20302    20319      +17     
===========================================
+ Hits         11025    11037      +12     
- Misses        9277     9282       +5     

Flag	Coverage Δ
unittests	54.31% <84.78%> (+0.01%)	⬆️

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