Maya Instanced geometry support in ```model``` subset / Validator

[LiborBatek]

When trying to publish model family I get validation errors because of non-unique IDs of the geometries which shares its ShapeNode due to instance nature of them using Maya DuplicateSpecial function with geometry type se to Instance

Instancing in maya being crucial function and should be supported at least on a model level (look should be applied normally just multiple times I guess because of the same shapeNode and object ID...

[cuID:2z6gmq2]