Aidan py tests

[AidanWesley]

Describe your changes

Added a test for the Xmin to the T98, I also removed the PVIGS dependency for the T98 test to now be reliant on the psm3_pytest.csv file.

Issue ticket number and link

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist before requesting a review

• [X ] I have performed a self-review of my code
• [ X] Code changes are covered by tests.
• [X ] Code changes have been evaluated for compatibility/integration with Scenario analysis (for future PRs)
• New functions added to init.py
• API.rst is up to date, along with other sphinx docs pages
• Example notebooks are rerun and differences in results scrutinized
• What's new changelog has been updated in the docs

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.51%. Comparing base (1df6afc) to head (57f92d6).
Report is 5 commits behind head on development.

Additional details and impacted files

@@               Coverage Diff               @@
##           development     #117      +/-   ##
===============================================
+ Coverage        66.03%   66.51%   +0.48%     
===============================================
  Files               36       36              
  Lines             3392     3396       +4     
===============================================
+ Hits              2240     2259      +19     
+ Misses            1152     1137      -15     

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