This is more complicated than I expected.
We've got a new parser and a state machine for the args, but we now need to put these values to use and pass them to worldeditadditions.rotate().
NOTE TO SELF: BE REAL CAREFUL WITH ORIGIN HANDLING.
We MUST NOT pull from sorted pos1/2 by accident! Though I doubt this would be an issue since weac.pos.get(player_name, i) is a thing