Import materials, animations and lights using FBX

When using FBX to import (case Blender). The models don't look the same in Qt. Either the custom materials are different or there are differences how lights and reflections are applied. 

GLTF2 works better but we cannot use that technology only. FBX should be on the same level.

If there are errors or warnings in compatibility on the import phase, user should be informed that output won't be the same and what user needs to do next.