ENH: Remove unused wrapping code. ITK-3032.

The ExternalProjects/{ItkVtkGlue,PyBuffer} is left over from the
WrapITK project integration and is not used.  It is removed in this commit.

The ItkVtkGlue code has been migrated to the wrapping directory in the ITKVtkGlue module
and the PyBuffer is available as an External module here:

  https://github.com/tobiasmaier/itkPyBuffer

Change-Id: I0b0452667157c5c1d8f9c5892a45fe60f8320db2
COMP: Another baseline

For Ubuntu

Change-Id: I1910ebe91fb2b2930b979d29f1c0b400589039af
Merge topic 'UnusedWrapping'

c12ee17 ENH: Remove unused wrapping code. ITK-3032.
Merge topic 'QuickViewTestBaselines_1'

7abe33a COMP: Another baseline