feat: add options for case-insensitive matching of coltypes and dtypes in schema checks

[rich-iannone]

This PR adds the case_sensitive_colnames= and case_sensitive_dtypes= arguments to the col_schema_match() validation method. Both are set to True by default, which doesn't change the previous behavior. Setting any of these to False performs a case-insensitive match during interrogation.

The most important changes include updates to the ColSchemaMatch class, the schema comparison methods, and the col_schema_match() method, as well as new test cases to ensure the correctness of these features.

Enhancements to schema matching:

• [pointblank/_interrogation.py]: Added case_sensitive_colnames and case_sensitive_dtypes parameters to the ColSchemaMatch class and updated the __post_init__ method to handle these parameters.

Updates to schema comparison methods:

• [pointblank/schema.py]: Modified schema comparison methods (_compare_schema_columns_complete_in_order, _compare_schema_columns_subset_any_order, etc.) to include case_sensitive_colnames and case_sensitive_dtypes parameters.

Enhancements to the col_schema_match() method:

• [pointblank/validate.py]: Added case_sensitive_colnames= and case_sensitive_dtypes= parameters to the col_schema_match function and updated the validation logic to handle these parameters.

New test cases:

• [tests/test_validate.py]: Added new test cases to verify the functionality of the col_schema_match() method with different combinations of case sensitivity settings for column names and data types.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.82%. Comparing base (bbee06e) to head (4ab47ae).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #13      +/-   ##
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+ Coverage   99.76%   99.82%   +0.06%     
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  Files          11       11              
  Lines        1696     1724      +28     
==========================================
+ Hits         1692     1721      +29     
+ Misses          4        3       -1     

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