Massive update in GUI headers

GUI/coregui/Models/AngleProperty.cpp

GUI/coregui/Models/AngleProperty.h

GUI/coregui/Models/AxesItems.cpp

GUI/coregui/Models/AxesItems.h

GUI/coregui/Models/BeamAngleItems.cpp

GUI/coregui/Models/BeamAngleItems.h

GUI/coregui/Models/BeamDistributionItem.cpp

GUI/coregui/Models/BeamDistributionItem.h

GUI/coregui/Models/BeamItem.cpp

GUI/coregui/Models/BeamItem.h

GUI/coregui/Models/BeamWavelengthItem.cpp

GUI/coregui/Models/BeamWavelengthItem.h

GUI/coregui/Models/ColorProperty.h

GUI/coregui/Models/ComboProperty.cpp

GUI/coregui/Models/ComboProperty.h

GUI/coregui/Models/DetectorItems.cpp

GUI/coregui/Models/DetectorItems.h

GUI/coregui/Models/DistributionItem.cpp

GUI/coregui/Models/DistributionItem.h

GUI/coregui/Models/DomainObjectBuilder.cpp