Install instructions for Ikarus 280.49

1. Download required fonts: https://nx9934.your-storageshare.de/s/CtaMx269cbjJLGr
2. Download bus itself: http://strefa-omsi.pl/Watek-OMSI-2-Ikarus-280-49-BKV-Automatyczna-skrzynia-biegowÔÇô4614