RHTT 66 full rework and painted in ex EWS DB hybrid livery.

This mod has made changes to the following-
Sound mix, volume and resources. (more traction motor, better range on horn etc).
Dial lighting, Headlamps.
New NRN screen texture.
Loco identifier on cab poster RHTT AP (Railhead treatment train AP sounds)
Interior and exterior body textures.
Slightly cleaner look to the bogies.