Table Import: Share mesh duplicates

For the hybrid renderer to instance objects, duplicate mesh assets need to be sharing the same base mesh. On import, duplicate meshes should be identified and have their mesh component set to a common mesh for that element. For meshes that are the same but a different scale, the mesh should be shared and the transform scaled accordingly. Flipped meshes, meshes who's transform has a negative scale on any axis, can remain a separate mesh as the instancing does not support negatively scaled instances.

Vert count + bounds total volume or name matching may catch most instances.