Preview Blendshapes

[madjin]

I think it'd be very useful for people to drag and drop their vrm into the browser and be able to inspect if their blendshapes are working / how they look

ideas:

• https://vrmeditor.tools/
• https://github.com/cecil-tools/VRMEditorTools (uses babylonjs I believe...)
• https://pixiv.github.io/three-vrm/packages/three-vrm/examples/expressions.html