COMP: Specify minimum set of VTKv6 libraries. Fixes #3741

The VTK utility: Utilities/Maintenance/WhatModulesVTK.py discovers
which modules are used in a project. This patch modifies the Slicer
CMakeLists.txt file to only load the vtk modules used by Slicer. This
should reduce the number of libraries being linked.

This commit also updates CTK project including a patch reducing
the number of library associated with CTKImageProcessingITKCore library.

// ----------------
$ git shortlog 48ef9aeb8..282abc7 --no-merges
Jean-Christophe Fillion-Robin (1):
      CTKImageProcessingITKCore - With ITKv4, link only to the required libraries
// ----------------

Co-authored-by: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>

From: Bill Lorensen <bill.lorensen@gmail.com>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23350 3bd1e089-480b-0410-8dfb-8563597acbee
COMP: SlicerExecutionModel - Update to explicitly support ITKv4

//-------------
$ git shortlog 865e2a771..ecb58ad --no-merges
Jean-Christophe Fillion-Robin (1):
      COMP: Update GenerateCLP and ModuleDescriptionParser to use ITKv4
//-------------

From: Jean-Christophe Fillion-Robin <jchris.fillionr@kitware.com>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23351 3bd1e089-480b-0410-8dfb-8563597acbee