Ideas of questionable quality

[Superlagg]

A few improvements to the Securitron Access PDA program app thing:

- A button that summons all available securitrons on the station.
- A button that makes securitrons move with a bit more urgency.
- Ordering a securitron to patrol / wander around a general area or department.
- The ability to order a securitron to arrest a specific target, regardless of arrest status.
- A more responsive readout in the program UI that makes it easier to tell if an order went through or was eaten by lag.