Allow concrete warship types and possibly aircraft (corvette through aircraft carrier and bombers/fighters) to utilize the relative move (rmove) control signs.

The rmove sign is documented on the ccnet wiki and yet as far as I am aware is not enabled on crafts, though it allows for very useful strafing maneuvers and other precision movement for pilots if utilized well.

If it is deemed to much for all ships, consider adding it to corvette and possibly destroyer as well as aircraft as that fits with them being more nimble but lightly armed crafts and adds more usefulness to corvettes, as well as giving more agility to small aircraft which would aid in dogfighting.

Maximum jump distance could be made to match cruising jump distances for each craft for balancing's sake, so between 5 and 8 blocks per craft I believe.