SetProjectilePosition:rotate proj. or SetProjectileRotation

[knorke]

With Spring.SetProjectilePosition one can move projectiles around but it always keeps pointing towards the original target.
That means point sideways or backwards while being moved around.

With SetProjectileRotation (rx,ry,rz) one could point the projectiles into the right direction.
Or something that adjusts the rotation of projectiles based on their last positions, even if it was moved by SetProjectilePosition.