[READY] Fix for vehicle parts not displaying properly

* Note: Will require tileset config files to be updated to the jsonized vehicle_part id values along with a "vp_" prefix to reduce potential conflicts later.

Have a compatible json and this works nicely :D

Also of note: This works with Tsu's tileset at the moment, and Deon has been informed of the necessary changes as well. Hoder was informed, but has since discontinued development on his tileset which sucks.