MESMER-X: decorator to supress warnings

[mathause]

Created a decorator to suppress the warnings. This allows to avoid a level of indentation, unfortunately there is not much that is unwrapped. But should become slightly easier to read anyway. We absolutely need to be more specific which warnings we suppress, because currently we also miss deprecations and other warnings we want to see - but have to defer that until we have some running tests to see what warnings there are. github does not seem to get the correct diff...

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 50 lines in your changes missing coverage. Please review.

Project coverage is 51.74%. Comparing base (9b0b76b) to head (df160c4).
Report is 97 commits behind head on main.

Files with missing lines	Patch %	Lines
mesmer/mesmer_x/train_l_distrib_mesmerx.py	0.00%	50 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #467       +/-   ##
===========================================
- Coverage   87.90%   51.74%   -36.16%     
===========================================
  Files          40       50       +10     
  Lines        1745     3231     +1486     
===========================================
+ Hits         1534     1672      +138     
- Misses        211     1559     +1348     

Flag	Coverage Δ
unittests	51.74% <0.00%> (-36.16%)	⬇️

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[mathause]

The diff works better if whitespace differences are ignored

merging