feat: make TableConfig accessible

[ion-elgreco]

Description

Make it easier for other libraries to wrap DeltaTable and reinstantiate the state from the provided input.

PyO3 doesn't support namedtuples directly yet, hopefully in the future though

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.

Project coverage is 74.22%. Comparing base (2ffaacc) to head (aa3fbe7).

Files with missing lines	Patch %	Lines
python/src/lib.rs	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3518      +/-   ##
==========================================
- Coverage   74.25%   74.22%   -0.03%     
==========================================
  Files         150      150              
  Lines       44739    44746       +7     
  Branches    44739    44746       +7     
==========================================
- Hits        33220    33212       -8     
- Misses       9374     9386      +12     
- Partials     2145     2148       +3     

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