Merge branch 'RefactorModelAccess' into 'develop'

GUI/Models/ApplicationModels.cpp

GUI/Models/JobItem.cpp

GUI/Models/JobItem.h

GUI/Models/RealDataItem.cpp

GUI/Models/RealDataItem.h

GUI/Models/RealDataModel.cpp

GUI/Models/RealDataModel.h

GUI/Views/ImportDataView.cpp

GUI/Views/ImportDataView.h

GUI/Views/ImportDataWidgets/LinkInstrumentManager.cpp

GUI/Views/ImportDataWidgets/RealDataPropertiesWidget.cpp

GUI/Views/JobView.cpp

GUI/Views/JobView.h

GUI/Views/MaterialEditor/MaterialEditorDialog.cpp

GUI/Views/MaterialEditor/MaterialEditorDialog.h

GUI/Views/PropertyEditor/CustomEditors.cpp

GUI/Views/SampleDesigner/SampleToolBar.cpp

GUI/Views/SampleView.cpp

GUI/Views/SampleView.h

GUI/Views/SessionModelView.cpp