[MOD] Extended staff detectors

[Chinbob]

This mod takes the concept of the previous staff detector mod, and expands on it.
There are several detector objects, which will send a wired signal if there is a person of their group within 2 blocks. There are 7 groups that can be detected: all people, all staff, guards, bureaucracy, visitors, prisoners, and emergency staff.
You can also add upgrades to your detectors. The first is a range upgrade, that can be installed on or adjacent to the detector, and will increase the detection radius by 1. You can install 9 of these. Also, there is an upgrade that will turn off the signal if there are prisoners within the radius.
Check it out here:http://steamcommunity.com/sharedfiles/filedetails/?id=598053423.

I basically did this mod in the sudden realisation I've now got my head around modding wired things; it's small, and only an extension of a previous mod, basically, but it seem to work nicely.