Update for 1.56 by Cip

changelog v.1.54.a
-adaptation for ATS 1.54
-removed file road_look.sii (overtaking rules set as default by SCS due to latest changes)

changelog v.1.53.a
-adaptation for ATS 1.53
same update works for 1.50-1.52 too

changelog v.1.51.a
-adaptation for ATS 1.51

changelog v1.50.b
-restored some values in traffic_data

changelog v.1.50
-adaptation for ATS 1.50
-new speed rule for night time
-increased speed at foggy weather
-spawn tweaks for some custom vehicles

updated for ATS 1.49

changelog v.1.48.a
- reduced spawn of trucks
- no compatibility update needed, this version will also work in 1.47

changelog v.1.47.a
-updated for ATS 1.47.*
-removed traffic_rules file (to improve compatibility with future versions)
-removed semaphore file (scs improved default semaphores close to my standards)

changelog v.1.46.g
-applied two rules that might speed up Ai to go faster