Use non-linear interpolation to smooth server/client physics prediction

This might need an architectural change in Sphynx, such as allowing it to differentiate between components that need sending every frame and those that do not. We need to find a way to differentiate between the server "forcing" a client's physic attributes (such as during teleportation) and requesting that they be updated. The old engine solved this by having a way of forcing component updates vs suggesting them. Ideally, we'd have something similar in Sphynx.