vtkF3DMetaImporter: Fix coloring for skinning, morphing, and such

[mwestphal]

• Proper Coloring/PointSprits actor creation by shallow copying Prop3D
• Add animation support for coloring and point sprites with a special case for generic importer
• Add test covering coloring ( and coloring animation ) for user transform, morphing, skinning and input change
• Add test covering point sprits (and point sprites animation) for user transform and input change
• Add a test for generic importer animation and point sprites

Fix: #2000

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.88%. Comparing base (bbb0a63) to head (7c16caf).
Report is 10 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2172      +/-   ##
==========================================
+ Coverage   95.86%   95.88%   +0.01%     
==========================================
  Files         127      127              
  Lines       11060    11104      +44     
==========================================
+ Hits        10603    10647      +44     
  Misses        457      457              

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[mwestphal]

@exbluesbreaker @Meakk please review

[exbluesbreaker]

Seems good to me. I also checked already how it works and behavior is as expected