Effect generator Creator / Designer integration

• Consider integrating tool with the Creator / Designer.
• There could be some "Create Custom Effect" in the menu to launch effect maker.
• And when exporting, Creator project path would be automatically selected.
• Effect component, shaders & images would be automatically added into project CMake/pro/qrc.
• Effect needs to be playable during editing in Qt DS

This can be done by adding a plugin for QDS the same way it was done for Custom Material editor. The plugin handles feeding the correct paths etc. to the standalone multi effect maker.