Mesh collider shader for static objects

[WrathfulSpatula]

In the demo scene, the room mesh collider has a non-"isReadable" mesh, likely due to settings like being GameObject static. This prevents the mesh collider shader from transforming the collider geomtry. It should be possible to have static geometry while transforming it with the relativistic mesh collider.

[WrathfulSpatula]

We addressed this a long time ago, but I forgot to close the issue.