ENH: Add vtkMRMLLayoutLogic::MaximizeView()

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23016 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Add vtkMRMLCameraNode::SetViewAngle

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23017 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Cleanup and speedup vtkMRMLScene::IsFilePathRelative and

SystemTools::SplitPath() was unnecessary slow to know if a path is relative
or absolute.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23018 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Don't read headers for 2D files

+ Shortcut the costly vtkMRMLStorageNode::AddFileName()

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23019 3bd1e089-480b-0410-8dfb-8563597acbee