Cowshed 3+3 v1.1.0.0

Free-stall barn for 200 cows.

Feeding is possible in the middle of the cowshed.
Adding straw can be done in the middle of the stable near the frontdoor (MilkTank side).
Animals can be delivered using the doors at the right front of the building.

Cost: 400.000 $
Daily upkeep: 300 $

Changelog 1.1:
- Fixed slurrytrigger animation
- Fixed mp
- Fixed feedingtrigger
- Fixed price