Makes upgrading cameras not require tearing the whole thing down
requested to merge pull/4657/frozensolidbythesuddenpresentationthecynicalandbitterAIwasstruckwideawakebytheincrediblethoughtthatitcouldnowindeedseeintothedormsforthefirsttimesinceitwasmanufactured into Bleeding-Edge
Created by: 9600bauds
Fixes #4172 (closed) To upgrade cameras, you can now simply cut all the wires and jam the upgrade in, without needing to unweld the camera and then painstakingly rebuild it back. Also brought camera icon updating up to standards, as it was awful before and allowed things like broken cameras going back to using working camera icons after being EMPd, normal cameras upgraded to have X-ray not using the X-ray camera icon (and removing the X-ray from roundstart upgraded cameras not reverting them to the normal icon) etc.
Does NOT fix the terrible, terrible camera console behavior. X-ray cameras still don't work when seen through a console, only for the AI.