JecsTools - 7-19-17 CompVehicle Overhaul

The data recording method has been changed for CompVehicle from List to ThingOwner. This should help greatly with saving/loading caravans with vehicles in the future.

Added CompVehicleSpawner. This new component allows mod makers to have their vehicles created from objects. Traders could sell kits/sets of parts that could be assembled. These assembled parts can spawn vehicles.

Remaining issues:
Occasionally, vehicles will not pick up supplies on their way to forming caravans.
The social menu on the caravan is currently throwing red errors.