Multiplayer isn't handled properly

[Jofairden]

Currently, the tile entity doesn't sync properly (requires tml update)
Furthermore, the UI should be bound per-tile, so bound to the tile entity. This UI shouldn't be openable by other players when someone is using it, similar to vanilla chests.

[Jofairden]

Should've added support for UI being unopenable for other players when someone is using it in 728fe40 , still require a tML update to actually sync the TE though.