Added Bearing & Spring bodygroups to freight bogey 2, and greatly simplified physics

Added HT-C bodygroup for locobogey3, added HTCR Truck as locobogey6

The Unavoidable post-update bugfix

Added Ore Jennies and Stave Bodygroup for flatcar1

Made the trailer hitch on the wellcar look less crappy, fixed some polygon gaps on tanker2, fixed improper number of skins on centerbeam

Fixed new intermodal not showing up

Added centerbeam bodygroup types, made slight adjustments to hoppers, refurbished wellcars

Forgot to scale down the control stand. Whoops.

Made boxcars 1/2 have roof detail by default, removed buffer hitboxes and changed weights on mozer's wagons, added EMD control stand model with bodygroup levers

Added bodygroups to boxcars, hoppers, gondolas, and flatcars, updated tankers, changed boxcar2 into an end door boxcar, changed boxcar4 into an auto parts boxcar, added hopper4, updated hoppers 1-3, gave all car models artificially lower centers of mass