Scania 4 v2.3

Mod tested and working on v1.30
Mod added Scania 4 series, replace one of Scania R in truck dealer.
Truck have oryginal interior with animation, and advance tuning options.
Available is Topline cab, and cp19, also chassis 4x2, 6x2, 6x4, 8x4 and BDF chassis

Changes in v2.3
- Mod is compatible with patch 1.30
- Changes on dashboard
- Fixed game crash on truck dealer
- Oboard computer moved as accessory
- Fixed errors and warnings
- Changes in defs of tandem trailers
- ATC added for trailers and truck
- DLC National Window Flags support added