Cyborg consistiency, deconstruction tweaks

Examining an unlocked cyborg will show you they are unlocked.
Fixes potential bug where you can make a cell disappear with Cyborg deconstruction.
Cyborg deconstruction now spawns the amount of cable coil the chest has, instead of using a hard coded value of 1.
"Cover" vs "panel" naming inconsistencies in the context of cyborgs are resolved.
[/icons/mob/robots.dmi](https://github.com/tgstation/-tg-station/blob/16fb3f355c6ffd3c14e90be12c9c6df9ae43c196/icons/mob/robots.dmi) has been modified so the image state names use "cover" instead of "panel".