Add holes attribute to polygon

[Stoops-ML]

• Add holes attribute to polygon
• Add PositionListOfLists property
• Test added for above changes

[Stoops-ML]

@astrojuanlu any idea why the circleci quality check is failing?

[astrojuanlu]

Ugh, direct invokations of setup.py on the command line are deprecated and possibly broken...

python setup.py check

Looks like we'll need to get the CI green first (worth doing so in a separate PR)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.23%. Comparing base (0477d4a) to head (97a024b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #114   +/-   ##
=======================================
  Coverage   99.22%   99.23%           
=======================================
  Files          12       12           
  Lines         776      784    +8     
=======================================
+ Hits          770      778    +8     
  Misses          6        6           

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[Stoops-ML]

This would close #96

[astrojuanlu]

LGTM!

[astrojuanlu]

Will require editing some merge conflicts