Start the functionality to use VTK scene data to initialize viewer.
Set color in renderer.
Add drawVtkViewer.html which combines the VTK geometry and scene.
Create function to create vgl.viewer from vtk data.
Modify the Viewer html to move viewer creation out of page.
Fix lint error.
Remove the scene only html.
Add python test class for drawVtkViewer.
Add regression python for vkt Objects and Viewer.
Merge branch 'support_pv_scene' into next

* support_pv_scene:
  Add regression python for vkt Objects and Viewer.
  Add python test class for drawVtkViewer.
  Remove the scene only html.
  Fix lint error.
  Modify the Viewer html to move viewer creation out of page.
  Create function to create vgl.viewer from vtk data.
  Add drawVtkViewer.html which combines the VTK geometry and scene.
  Set color in renderer.
  Start the functionality to use VTK scene data to initialize viewer.