[VTK] Implement Glyph3Dmapper serialization

[xavArtley]

fix: #2001

[philippjfr]

Thanks @xavArtley! Just one error in the unit tests:

>               getattr(instance, method)(*args)
E               TypeError: SetInputData() takes exactly 1 argument (2 given)

[codecov]

Codecov Report

Merging #2002 (4882b26) into master (2b33b05) will decrease coverage by 0.01%.
The diff coverage is 73.91%.

@@            Coverage Diff             @@
##           master    #2002      +/-   ##
==========================================
- Coverage   84.58%   84.57%   -0.02%     
==========================================
  Files         164      164              
  Lines       19823    19833      +10     
==========================================
+ Hits        16768    16773       +5     
- Misses       3055     3060       +5     

Impacted Files	Coverage Δ
panel/pane/vtk/synchronizable_serializer.py	79.93% <68.42%> (-0.91%)	⬇️
panel/pane/vtk/synchronizable_deserializer.py	97.54% <100.00%> (+0.04%)	⬆️
panel/io/reload.py	68.23% <0.00%> (+2.35%)	⬆️

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[philippjfr]

Thanks, merging.