cleanup

GUI/View/Mask/AllMasksDisplay.h

GUI/View/Mask/MaskGraphicsProxy.h

GUI/View/Mask/MaskGraphicsScene.cpp

GUI/View/Mask/MaskGraphicsScene.h

GUI/View/Mask/RegionOfInterestDisplay.h

GUI/View/Shape/EllipseDisplay.h

GUI/View/Shape/IMaskElementDisplay.cpp

GUI/View/Shape/IMaskElementDisplay.h

GUI/View/Shape/LineViews.h

GUI/View/Shape/MaskContainerDisplay.h

GUI/View/Shape/MaskEditorHelper.h

GUI/View/Shape/MaskType.h

GUI/View/Shape/PolygonDisplay.h

GUI/View/Shape/PolygonPointDisplay.h

GUI/View/Shape/RectangleBaseDisplay.cpp

GUI/View/Shape/RectangleBaseDisplay.h

GUI/View/Shape/RectangleDisplay.h

GUI/View/Shape/SizeHandleElement.h