Implements GLTF Draco extension support

[Meakk]

Fix #469

Waiting for https://gitlab.kitware.com/vtk/vtk/-/merge_requests/10884

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 88.59649% with 13 lines in your changes are missing coverage. Please review.

Project coverage is 96.49%. Comparing base (3f8eb1d) to head (69650c1). Report is 9 commits behind head on master.

Files	Patch %	Lines
plugins/draco/module/vtkF3DGLTFDocumentLoader.cxx	85.22%	13 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1287      +/-   ##
==========================================
- Coverage   96.59%   96.49%   -0.10%     
==========================================
  Files         138      146       +8     
  Lines        8446     8697     +251     
==========================================
+ Hits         8158     8392     +234     
- Misses        288      305      +17     

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[Meakk]

@mwestphal it's ready to review, but cannot be merged before VTK MR

[mwestphal]

ci is not clean