Large Old Barn v2.0.0.0

Update 2.0.0.0 :
- 3D Modification : Enlarged doors, addition of an external outlet for milk.
- Trigger of displaced milk.
- Addition of marker to indicate the openings of the nets and the roof window.
- Correction of loading points for AI.
- Modification of the number of cows.
- Changes in quantities.
- Changed descriptions to raise and lower the nets and roof window.
- Other minor fixes.

Large Old Barn.
- The barn holds 216 cows
- Price : 400,500 $
- Maintenance : 250 $/Day
- Dimensions : 102 x 27.5 x 7 meters
- Capacities : Milk 120,000 / Straw 100,000 / Slurry 200,000 / Manure 100,000
- Integrated Manure Heap