Gives the player more control over drug use in game.
Adds the objects:
**Dispensary**
Links to a stockpile to provide drugs to pawns that are authorised to use them via the vanilla drug policy system.
This building fits on to a wall and blocks access to this protected stockpile.
**Drug Room Door**
A special door that blocks access to pawns assigned to specific drug policies.
This can be used to keep at-risk pawns out of the protected drug stockpile.
Beware though! anyone can pass the door if it is unpowered (will act like a standard door).
Unlocked with the reasarch 'Autodoors'