Removed fake crome parts and added tempcon trailer.

The current build only contains 3 livery versions of the first Dolly Trailer
variant that you can buy from within the store. There is the white demo
Scania version in which the color of the stripes and such has been changed
to match the demo truck. This would also be the original Abbekås Åkeri
livery before they joined the tempcon group. It also contains the new
Tempcon group version.

1: White Scania Demo Variant.
2: Regular Variant.
3: Tempcon Group Variant.