Improved Traffic Density by shaneK 1.34.x

This mod not only increases traffic density, but also changes its behavior to create a more loaded and more fluid experience.
- Increase traffic in general, which creates a more realistic feel
- Dynamic density based on time of day, peak peak hours, quiet nights and everything in between
- Queues that do build up are quicker to filter away
Mod was tested on ETS2 1.34.x.x, but it should work on older game versions too.