Version 10.6 - added new skins of Polish real bus operators

Pack adds in traffic 43 new models of buses with 1261 skins (Setra, Neoplan, Volvo, Man, Mercedes-Benz, Ikarus, Scania, Ayats, Irizar, Temsa, Irisbus, Jelcz, Karosa, Caetano, Optare).
All standalone, works on any maps.
Compatible with all my packs.
Tested on version 1.39.x