bug detector

This is a port of /tg/'s "AI detector" syndicate item with some tweaks as requested by #1647. Now detects (in order of priority) if the AI can see you, if a pAI is nearby, if an active tape recorder is nearby, or if a voice analyzer (or an assembly/transfer valve with a voice analyzer attached) is nearby. The green light on the multitool icon changes in response to detected devices. Still functions as a normal multitool.

Color code is:
red for AI can see you
orange for pAI nearby
yellow for active tape recorder nearby
blue for voice analyzer nearby
green, obviously, is all clear
Use ```switch(found_eye)```