Spawner Rotation #1

Added Basic rotation of props before spawn.
Rotation instructions are:
- Hold 'R' to rotate objects, this stops the player from moving and
changes WASD to control rotation
- Use WASD to rotate the prop at angles of 45 degrees in the respective
direction

CURRENT ISSUES - I find it annoying that the rotation isn't saved for
the next object, so you need to re-rotate each object when placing
several in series.