objects_sketch.py -> mypy typing improvements

[jdegenstein]

Solves most issues with the module, but I am not sure about this one:

class BaseSketchObject(Sketch):
...
    def __init__(
        self,
        obj: Compound | Face | None, # added or None, which is not handled well upstream

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.99%. Comparing base (25181f4) to head (4669057).
Report is 20 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #853   +/-   ##
=======================================
  Coverage   96.98%   96.99%           
=======================================
  Files          31       31           
  Lines        8901     8922   +21     
=======================================
+ Hits         8633     8654   +21     
  Misses        268      268           

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[gumyr]

If there are places where None isn't handled well you could just leave the typing problem there for now and we can circle back and look into it in depth. The geometry.py module contains many tricky problems do to the separation of geometry and topology - I might do a first pass with a few problems remaining.

[jdegenstein]

@gumyr Sounds good, I went ahead and reverted that change. As far as I know this is ready to merge.