* Add SCRIPT_COMMAND_MOVE_DYNAMIC to move to a random point or towards another unit
* Toggle GetRandomPoint function to be able to return a random point with min-distance or a given direction.
* Toggle MovementGenerator::GetResetPosition to be able to return a reasonable orientation for reset.
Ideas and requirement research by virusav!
Thanks to virusav and Grz3s for test-feedback! (c2603)