Materials of the author «marleystruli» 1

- Added support for 0.28.x.
- 2 cities;
- Long straight roads with hills;
- Industrial areas;
- Custom road signs;
- Realistic gas stations;
- Changes in the soil;
- Added background;
- Added real gas stations;
- Added camping area;
- Added new houses;
- Reduced file size;
- Fixed roads to be more convenient for driving with trucks;
- Added real billboards.