ENH: slicer.util - Add convenience method "modulePath(moduleName)"

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22851 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: MRMLLayoutManager - Add methods to all slice or 3D views

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22852 3bd1e089-480b-0410-8dfb-8563597acbee