add rotational intertia calculation script

[dvanwolffelaar]

Solution to issue

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.65%. Comparing base (b108d53) to head (2924354).
Report is 11 commits behind head on main.

Additional details and impacted files

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##             main      #94   +/-   ##
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  Coverage   91.65%   91.65%           
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  Files           5        5           
  Lines        1366     1366           
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  Hits         1252     1252           
  Misses        114      114           

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[ufechner7]

Good starting point, but you can get all vectors from the settings file. So the script should print the resulting inertia based on the settings.

[ufechner7]

What is missing is a main program, that calls one of your functions and prints the result. OK, I see you print the results in one of the functions. But this is not so good, a function that has a name starting with calculate_... should not print anything.