CN Transportation skins for default trucks

Paintjobs for all cabs for the default Peterbilt 579 and Kenworth T680 & W900. Daycab skins are distinct from those used on the sleeper cabs, and all three T680 cabs receive a unique skin.

All are based on or inspired by real-world units. Lettering sizes, fonts, and locations are purposely slightly different on each skin, as the real-world owner-operated CN trucks are often painted and decalled by various shops across the continent.

Tested on ATS version 1.0, 1.0.0.4, 1.1.1.1