General cryo and unary atmos machinery fix

Fixes cryo and other unary atmos machinery connection fuckery
Cryo now doesnt freeze the dead/fullhealth people and ejected people
dont get frostbiten
Body temperature fix
Merge branch 'master' of https://github.com/tgstation/-tg-station into UnaryMachinery
Merge pull request #3030 from Razharas/UnaryMachinery

General cryo and unary atmos machinery fix