Split AppSvc into ProjectManagerStore and MaterialModelStore

GUI/Models/MaterialItemUtils.cpp

GUI/Models/MaterialModel.cpp

GUI/Models/MaterialModelStore.cpp

GUI/Models/MaterialModelStore.h

GUI/Views/ImportDataWidgets/ImportDataUtils.cpp

GUI/Views/ImportDataWidgets/RealDataSelectorWidget.cpp

GUI/Views/IntensityDataWidgets/IntensityDataCanvas.cpp

GUI/Views/MaskWidgets/MaskEditorCanvas.cpp

GUI/Views/MaterialEditor/MaterialEditorUtils.cpp

GUI/Views/RealSpaceWidgets/RealSpaceBuilderUtils.cpp

GUI/Views/RealSpaceWidgets/RealSpaceCanvas.cpp

GUI/Views/SimulationWidgets/SimulationSetupWidget.cpp

GUI/Views/SpecularDataWidgets/SpecularDataCanvas.cpp

GUI/Views/SpecularDataWidgets/SpecularDataImportWidget.cpp

GUI/mainwindow/ProjectManagerStore.cpp

GUI/mainwindow/ProjectManagerStore.h

GUI/mainwindow/ProjectUtils.cpp

GUI/mainwindow/PyImportAssistant.cpp

GUI/mainwindow/projectmanager.cpp