Add SystemErrorException class to raiutils

[gaugup]

Description

Add SystemErrorException class to raiutils as it will serve as the base class for System Errors.

Checklist

• I have added screenshots above for all UI changes.
• I have added e2e tests for all UI changes.
• Documentation was updated if it was needed.

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/AddSystemExceptionRAIUtils/dashboard/index.html

[github-actions]

https://responsibleai.blob.core.windows.net/pullrequest/microsoft/responsible-ai-toolbox/gaugup/AddSystemExceptionRAIUtils/dashboard/index.html

[codecov-commenter]

Codecov Report

Merging #1951 (61d09a1) into main (d537b25) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1951   +/-   ##
=======================================
  Coverage   94.16%   94.16%           
=======================================
  Files          95       95           
  Lines        4712     4714    +2     
=======================================
+ Hits         4437     4439    +2     
  Misses        275      275           

Flag	Coverage Δ
unittests	94.16% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
raiutils/raiutils/exceptions.py	100.00% <100.00%> (ø)

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