Adding setVehicleNitroActivated server-side

[Proxy-99]

part of #3703 help with #2726

[FileEX]

Remember to add a condition to CLuaVehicleDefs::SetVehicleNitroActivated in the future whether the new state is different from the previous one (When IsVehicleNitroActivated will be available)

if (state == IsVehicleNitroActivated(vehicle))
    return false;