Add an option to skip rig setup on import

[xmf]

I have no use for the rigs, i use diffeomorphic daz for asset conversion. if its easy to add a checkbox to just import the mesh with materials and nothing else this would benefit by not slowing down the import process and not creating lag in viewport due to massive amounts of rigs

[Alessandro Padovani]

I agree such an option would also be useful for the alembic importer by Donald which imports a vertex cache animation so rigs are not necessary for this particular workflow.

https://www.daz3d.com/forums/discussion/428856/

[Thomas Larsson]

Implemented in last commit. Rig import is now controlled by the global option Armature at the top of the Rigging group.

[Alessandro Padovani]

Commit 2a97fb3 works fine here, if xmf has nothing to add may close as resolved.