STYLE: Remove extra ITK_LIBRARIES in GaussianBlurImageFilter CMake config.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@21697 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Generate ExpertAutomatedRegistration test data.

The code to generate test data was already.  It was fixed
up and re-enabled.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@21698 3bd1e089-480b-0410-8dfb-8563597acbee