Added GShape base class.

[338rajesh]

No description provided.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 81.70732% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.35%. Comparing base (12cb702) to head (a44e1d0).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
gbox/gshape/ellipse.py	87.75%	6 Missing ⚠️
gbox/utils.py	70.00%	6 Missing ⚠️
gbox/gshape/gshape.py	72.72%	3 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #24      +/-   ##
==========================================
- Coverage   83.49%   83.35%   -0.14%     
==========================================
  Files           5        6       +1     
  Lines         739      787      +48     
==========================================
+ Hits          617      656      +39     
- Misses        122      131       +9     

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