vrm avatar support

[jeanahelver]

loading vrm model files and possibly auto configuring to an avatar. perhaps even loading from web resource like hub.vroid.com

[Frozenreflex]

Change the file extension to .glb.

[art0007i]

vrm has extra data such as spring bones that could be converted to our dynamic bones it should even have enough data to allow to import and equip instantly, without the avatar creator like jeana suggested