Patrol mode for Robots

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I'm pretty sure most bots' AI are so badly broken right now that they can barely even handle their own jobs as it is.

I noticed their patrol routes are pretty messed up. Harner will always run up through the chapel office, which invites danger right in. And then he proceeds to just sit behind the bar till his battery runs dry.

Securitron and guardbuddy patrols are controlled by the navigation beacons under the floor. I was mostly talking about the other bot types, though - cleanbots and floorbots aren't all that great at their jobs.