British hay/straw shed

British hay/straw shed - Fixed.

British hay/straw shed - Fixed.

This is Farmerl's British hay/straw shed, that I have fixed with his permission.

Things done:
Fixed the PhysX warning. Note the building is still the same size as before.
Fixed the error, zero triangles in mesh.
Removed unseen parts.
Reassigned materials. The frame now uses only one texture file.
Optimized textures for better performance.
Changed clip distance to 500.