Add Python version GenCrc32 code and unit test cases

[YuweiChen1110]

Cc: Rebecca Cran [email protected] Cc: Liming Gao [email protected] Cc: Bob Feng [email protected] Signed-off-by: Wenzhao Li [email protected] Signed-off-by: Yuwei Chen [email protected]

[codecov[bot]]

Codecov Report

Patch coverage: 71.31% and project coverage change: +0.10 :tada:

Comparison is base (8d9b898) 4.27% compared to head (7c51f64) 4.38%.

:exclamation: Current head 7c51f64 differs from pull request most recent head 5ab9a28. Consider uploading reports for the commit 5ab9a28 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #101      +/-   ##
=========================================
+ Coverage    4.27%   4.38%   +0.10%     
=========================================
  Files         182     184       +2     
  Lines       81605   81734     +129     
=========================================
+ Hits         3490    3582      +92     
- Misses      78115   78152      +37     

Flag	Coverage Δ
Linux	4.38% <71.31%> (+0.10%)	:arrow_up:

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Impacted Files	Coverage Δ
edk2basetools/GenCrc32/GenCrc32.py	56.52% <56.52%> (ø)
edk2basetools/tests/GenCrc32/test_gencrc32.py	88.33% <88.33%> (ø)

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