Animal trailer in traffic v2.0

Animal trailer in traffic v2.0 (1.37.x) for Euro Truck Simulator 2 game 

With this mode you  have in traffic for ai cars, trailer with animated livestock (cows and horses) !

First, I've intended to make this mod for Jazzycat ai traffic mod, since the trailer model belong to him (and the credits),

 but , to allow the players with less powerfull PC's to play with this, this mod is standalone ! 

- Added specific "passenger sound"  
It means, sometimes, cows and horses are no more quiet !!

Warning: Don't drive to close to the trailer, you may get, or not, something nasty on your windshield! 

Tested on 1.37.x game version