Rotate, RotateWorld script instructions.

Tested and working good. But:

1) Some things, like dwarven doors still not rotate exactly the same way as in morrowind. They probably lock framerate at some value for the moment of rotation, but I don't know if we can do that in openmw.
EDIT: already fixed

2) We still need better batching (or temprary disable static objects) to see most of the rotations.