Highlighting tablets

The mod adds a backlit signs on trucks (4 types of illumination).

Just added to trucks:

Daf Euro 6
Iveco Hiway
Scania Streamline
Volvo FH16 2012
Mercedes Actros MP4
Scania RS (RJL)

Tested on 1.19.2.1s game version

Credits:

Author:  Wujek Chill

Adding truck: djmassive2