Farming Plus Slots compatibility

fixed: Door + Rear Wall collission - this should also fix the inaccessibility to open the Door sometimes
fixed: All parts can be dismantled again!
tweaked: Some script cleanup

- fixed: You could take the Water pump into cargo when it was big enough
- fixed: Textures and rvmats
- fixed several other stuff

- sorry, forgot to apply the colission of the back wall. Fixed now.

Fixed Stairs collision
Added Logs next to the front Window
Fixed position of the small front poles
Fixed server/client crash when opening door (thanks to InclementDab <3)