Adds a component that allows connecting 2 separate cars in multiple ways.
When 2 cars are coupled, the objects will connect.
Can be hidden when not coupled.
Allows rigid and matching connections (half match WIP)
Reworked multiple things in the editor side for better QoL.
Fixed mesh grabbers not serializing (jagged array can't be serialized).
Adds a component that allows connecting 2 separate cars in multiple ways.