Changelog:
-Added audio to road tool
-Added particle effects to road tool
-Improved road tool visualization
-Improved skid marks
-Road tool height tooltip now shows height difference to terrain
-Fixed not being able to change road material when having only one node selected
-Fixed not being able to change road material two times in a row
-Fixed some players auto retiring before race starts in multiplayer
-Improved RX handling
-Various fixes & improvements