Slightly lowered brake force.

Improved inside/interior, so doors are visible (inside has no 3D detail)
Made the exterior less dark in the shade (lowered occlusion).

First Release Version

Features:
- Re-skinned original 16T mineral wagon in bauxite paint scheme with 'BR dirty red' frame ends
- Vacuum brake physics, but weak enough to be a challenging ride and hopefully authentic
- Maximum speed 45mph (Class 7 - Fully fitted Freight Train)
- 3D representation of brakes / brake shoes

This is my first texturing/re-skinning job but I really wanted a braked coal wagon for DRS.