Idhandling I

[JuliaS92]

Major changes:

• MaxQuant is now filtered for lines with overflowing ids
• gene to protein id mapping is replaced by 3 new dictionaries (two are currenlty unused but will be in the next PRs)
• Intensity plot is updated to handle lists of feature ids as facets

[JuliaS92]

The failing tests are fixed in the next PR https://github.com/MannLabs/alphapeptstats/pull/379

[JuliaS92]

All resolved conversations were either addressed in the two child branches, or added as TODO in this commit: https://github.com/MannLabs/alphapeptstats/pull/383/commits/adb223e6892fb7655d3439791b5f29909734a9cc

[JuliaS92]

I realize now this was not the best workflow to squash the reviews. You can get an overview of the changes made to address all your comments on the three squashed PRs here: https://github.com/MannLabs/alphapeptstats/compare/f96dc60..af2f702

Quick fixes were included here and here