ENH: Specify required VTK modules

Specify the proper modules for VtkGlue and the WikiExamples Remote
module.

This also serves as an example of how to find vtk modules in remote
itk modules.

Change-Id: I9d9bf29d36c2b15ee8a814854c9b01e74a20d004
Merge branch 'master' into VTKModules

Conflicts:
	Modules/Bridge/VtkGlue/CMakeLists.txt

Change-Id: I03d16d593e89745a667b2756521734bd73b25365
Merge topic 'VTKModules'

e5c3f5bd Merge branch 'master' into VTKModules
5d6353e8 ENH: Specify required VTK modules