allow uploading gltf/glb/fbx files

[eyaler]

Increasing Access

make it easier for students

Feature request details

glb/gltf/fbx files are blocked from upload. we currently do allow stl/mtl/obj, and moreover one can actually upload and use glb if giving them a fake extension.

[webermayank]

@eyaler @raclim Hey , if this issue if ready for work, i would like to take this on, can i work on it ?