add helper functions to verify generated combination-lists

[SimeonEhrig]

• Add helper function to generate all expected parameter-value-pairs from a given parameter-value-matrix.
• Add helper function to check, if all given parameter-value-pairs exist in a combination-list.

[codecov-commenter]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (261f9c7) 83.78% compared to head (74589b0) 92.47%.

Files	Patch %	Lines
bashi/utils.py	97.43%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #6      +/-   ##
==========================================
+ Coverage   83.78%   92.47%   +8.68%     
==========================================
  Files           4        5       +1     
  Lines          37       93      +56     
  Branches        3       14      +11     
==========================================
+ Hits           31       86      +55     
  Misses          6        6              
- Partials        0        1       +1     

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