[j.823d] split MaskItems in 4 source pairs ()

GUI/Model/Data/Data2DItem.h

GUI/Model/Data/MaskResultsPresenter.cpp

GUI/Model/Data/ProjectionItems.cpp

GUI/Model/Data/ProjectionItems.h

GUI/Model/Detector/DetectorItem.cpp

GUI/Model/Detector/DetectorItem.h

GUI/Model/FromCore/ItemizeSimulation.cpp

GUI/Model/Mask/MaskContainerItem.cpp

GUI/Model/Mask/MaskContainerItem.h

GUI/Model/Mask/MaskContainerModel.cpp

GUI/Model/Mask/MaskContainerModel.h

GUI/Model/Mask/MaskItems.cpp

GUI/Model/Mask/MaskItems.h

GUI/Model/Mask/MaskRoot.cpp

GUI/Model/Mask/MaskRoot.h

GUI/View/Import/RealDataMaskWidget.cpp

GUI/View/Instrument/DetectorEditor.cpp

GUI/View/Mask/MaskEditorActions.cpp

GUI/View/Mask/MaskEditorCanvas.cpp

GUI/View/Mask/MaskEditorPropertyPanel.cpp