Merge pull request #373 from gpospelov/develop

GUI/coregui/Models/ApplicationModels.cpp

GUI/coregui/Models/GUIObjectBuilder.cpp

GUI/coregui/Models/GroupInfoCatalogue.cpp

GUI/coregui/Models/ItemCatalogue.cpp

GUI/coregui/Models/MaterialDataItem.cpp

GUI/coregui/Models/MaterialDataItems.cpp

GUI/coregui/Models/MaterialDataItems.h

GUI/coregui/Models/MaterialItem.cpp

GUI/coregui/Models/MaterialItem.h

GUI/coregui/Models/MaterialModel.cpp

GUI/coregui/Models/MaterialModel.h

GUI/coregui/Models/MaterialPropertyController.cpp

GUI/coregui/Models/SessionDecorationModel.cpp

GUI/coregui/Models/item_constants.h

GUI/coregui/Views/MaterialEditor/MaterialEditor.cpp

GUI/coregui/Views/MaterialEditor/MaterialEditorToolBar.cpp

GUI/coregui/Views/MaterialEditor/MaterialItemUtils.cpp

GUI/coregui/Views/PropertyEditor/ComponentUtils.cpp

GUI/coregui/Views/PropertyEditor/TestComponentView.cpp

Tests/UnitTests/GUI/TestMaterialModel.h