Package build trees or package build configuration

[thewtex]

@prabhuramachandran we would like to create Python packages for the ITK-VTK Glue from this ITK module.

We publish the ITK Python package build trees so we can build Python packages from ITK modules on GitHub.

For the itk-vtkglue Python package, we will also need the VTK sources, compiler, configuration -- and the build tree would be nice. Is it possible to get tarballs of the VTK build tree and source tree that was used to create the Python packages uploaded to PyPI? Or, can you just list what compiler, VTK version, and build configurations were used?

@jcfr @demarle