Fix QuakeMDL animation

[mwestphal]

• Rework of the animation code
• Proper implementation of animation selection and time logic
• Improving testing

TODO (not in this PR nor this release):

• Frame selection
• Frame interpolation
• GroupSkin support
• Skin selection support
• Complete rework using resource parser for safe implementation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.86%. Comparing base (8d04b92) to head (9f320ea).
Report is 195 commits behind head on release.

Additional details and impacted files

@@             Coverage Diff             @@
##           release    #2128      +/-   ##
===========================================
+ Coverage    95.67%   95.86%   +0.18%     
===========================================
  Files          125      127       +2     
  Lines         9947    11057    +1110     
===========================================
+ Hits          9517    10600    +1083     
- Misses         430      457      +27     

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[github-actions]

Some suggestions could not be made:

• plugins/native/module/vtkF3DQuakeMDLImporter.cxx
  • lines 118-118
  • lines 213-216
  • lines 232-234
  • lines 417-417

[github-actions]

Some suggestions could not be made:

• plugins/native/module/vtkF3DQuakeMDLImporter.cxx
  • lines 123-124
  • lines 401-402

[github-actions]

Some suggestions could not be made:

• plugins/native/module/vtkF3DQuakeMDLImporter.cxx
  • lines 123-124
  • lines 399-400