Add VRMA import functionality

[fire]

1. Imports vrma as a skeleton of bones
2. Does not apply the bone map
3. Does not make an animation library
4. Has animations

Lyuma — Today at 18:37
I saw that. you can do the same by renaming to .glb so I'm not sure there's a point to merge it right now but it's a good start
iFire (he, him) — Today at 20:17
no you can’t, that gives you node and not skeletal anim which is not a skeleton
Lyuma — Today at 20:41
I see, it makes the empty skin to force it to be a skeleton

[fire]

We merged a feature that any scenetree can be forced into a skeleton