* Split CMake/TestingMacros.h into MRML/Core/{vtkMRMLCoreTestingMacros, vtkMRMLDebugLeaksMacro}

* MRML/Core being a directory already included, when building extension
the header providing the testing macro will be found.

* Also split the macro allowing to consider leaks as error into "vtkMRMLDebugLeaksMacro.h"

git-svn-id: http://svn.slicer.org/Slicer4/trunk@19684 3bd1e089-480b-0410-8dfb-8563597acbee