Update 1.2.21

CNG: Layout of Assign Crew Positions menu, so that crewmen with large number of skills don't end up overflowing the display area
FIX: Hull-mounted weapons on AI units could in some cases fire out of facing
FIX: Friendly reinforcement units can now be spawned with passengers
FIX: Infantry and Guns will now reposition much less often when out of LoS of enemies
FIX: Enemy trucks in a Convoy Attack objective are now spawned in a separate procedure, should avoid having objectives with no trucks in them
FIX: Controller button input in Swap Crewmen Positions menu was not working correctly