Merge remote-tracking branch 'upstream/develop' into OffSpecInGUI

GUI/coregui/CMakeLists.txt

GUI/coregui/Models/ItemCatalogue.cpp

GUI/coregui/Models/SpecularDataItem.cpp

GUI/coregui/Models/SpecularDataItem.h

GUI/coregui/Models/item_constants.h

...oregui/Views/IntensityDataWidgets/IntensityDataCanvas.cpp

GUI/coregui/Views/IntensityDataWidgets/SavePlotAssistant.cpp

GUI/coregui/Views/IntensityDataWidgets/SavePlotAssistant.h

GUI/coregui/Views/MaskWidgets/MaskEditorCanvas.cpp

GUI/coregui/Views/SessionModelView.cpp

GUI/coregui/Views/SpecularDataWidgets/SpecularDataCanvas.cpp

GUI/coregui/Views/SpecularDataWidgets/SpecularDataCanvas.h

GUI/coregui/Views/SpecularDataWidgets/SpecularDataWidget.cpp

GUI/coregui/Views/SpecularDataWidgets/SpecularDataWidget.h

GUI/coregui/Views/SpecularDataWidgets/SpecularPlot.cpp

GUI/coregui/Views/SpecularDataWidgets/SpecularPlot.h

GUI/coregui/Views/SpecularDataWidgets/SpecularPlotCanvas.cpp

GUI/coregui/Views/SpecularDataWidgets/SpecularPlotCanvas.h

GUI/coregui/Views/SpecularDataWidgets/SpecularPlotEvent.cpp

GUI/coregui/Views/SpecularDataWidgets/SpecularPlotEvent.h