Renault Magnum by knox_xss Sound 1.39

This mod uses the samples that come with the original mod (thanks @knox_xss for permission!) and some from SCS.
I am aware that some sounds are missing (retarder lever, light switch for example), I haven't had time to properly implement them (yet), because frankly it took enough time to get to grips with fmod and figuring out why stuff wouldn't play ingame half the time.