Applying catalyst patch for python-wrapping updates

Python wrapping has changed from using vtkWrappingPython module to
vtkWrappingPythonCore. This patch makes corresponding changes to catalyst.

Change-Id: Ic399e423399014863129b737f2083c37a78e4f38
Merge topic 'catalyst-patch-python-wrapping' into next

f95cc6e Applying catalyst patch for python-wrapping updates