COMP: Fixed vtkMRMLProceduralColorNode build error on Windows

VS2013 threw this error:
42>C:\D\S4\Libs\MRML\Core\vtkMRMLProceduralColorNode.cxx(145): error C2057: expected constant expression [C:\D\S4RD\Slicer-build\Libs\MRML\Core\MRMLCore.vcxproj]
42>C:\D\S4\Libs\MRML\Core\vtkMRMLProceduralColorNode.cxx(145): error C2466: cannot allocate an array of constant size 0 [C:\D\S4RD\Slicer-build\Libs\MRML\Core\MRMLCore.vcxproj]
42>C:\D\S4\Libs\MRML\Core\vtkMRMLProceduralColorNode.cxx(145): error C2133: 'bareTable' : unknown size [C:\D\S4RD\Slicer-build\Libs\MRML\Core\MRMLCore.vcxproj]

git-svn-id: http://svn.slicer.org/Slicer4/trunk@25669 3bd1e089-480b-0410-8dfb-8563597acbee