Added sprites for TP3 signals.

Added a copy for wii_troublesome_truck_sg as br_wagon to avoid FBD. A better solution is being looked into.

Added a smaller variant of the henry's tunnel model for the next sodor update.

Added fake wheels to stroudley_sg

Lowered the flatbed bogey's origin. Oops.

Scaled up the flatbed bogey.

Lowered the fake wheels on the flatbed_sg bogey

i oopsied the flatbed bogey, fixed.

Edited mass center of flatbed bogey

Added wii_flatbed_bogey_sg, using hyperslider collision.