Add a table-mounted defibrillator to the security department

[virvatuli]

With the decrease in available stun batons, on lower-pop shifts I've had several occasions where I desperately needed a shock to jog someone's heart, but the nearest defib is an entire station away. It never used to be that big of a deal when everyone and their dog had batons, but when I'm the only security as Detective or Vice (or the secoffs have managed to have their gear stolen), shocking a door and throwing someone into it is kinda silly. On high population shifts, even if you shout for a doc to come to sec, rarely does it ever happen as medbay is chaos. 

If there were a table-mounted defib where the rest of the medical supplies are kept in Sec, it wouldn't be abusable or useful as a stun weapon since you can't take it very far away from it's mount. Additionally, it just makes sense from an immersion point of view, defibs are really common in security rooms in real life.