Cyborg Budget Cuts

-Cyborg RCD cost increased from unit*30 to unit*160
With a standard 15k power cell, you can still build:
93 floors
31 walls
18 deconstructions
9 airlock operations
-Reduced cyborg health from 300 to 200
-Cyborgs with less than 100 health can not use any modules, but can still move, speak, and wirelessly interact with machines
-Engineering cyborgs can now use metal rods
-Updated changelog
Merge branch 'master' of https://github.com/tgstation/-tg-station into borgnerf

Conflicts:
	html/changelog.html
Merge branch 'master' of https://github.com/tgstation/-tg-station into borgnerf
Replaced borg crit state with a gradual breakdown of its functions.
Moved the self check after the health check for welding tools
Merge branch 'master' of https://github.com/tgstation/-tg-station into borgnerf
Merge branch 'master' of https://github.com/tgstation/-tg-station into borgnerf
-Rewrote unequipping modules for cleaner code
-Cyborg rods now properly regenerate in while charging
-cyborg rods can no longer be used to generate metal
-Removed roman numerals from the icon
Update examine.dm
Merge branch 'master' of https://github.com/tgstation/-tg-station into borgnerf

Conflicts:
	html/changelog.html
Merge pull request #589 from Ikarrus/borgnerf

Cyborg Budget Cuts