Lots of work on hardsuits, commented out some broken WIP code, did some renaming, deleted now-redundant species-specific hardsuits.

(cherry picked from commit 4538fbabca45d1176c16b8f7390b3ce00d2debb8)

Conflicts:
	code/game/gamemodes/nuclear/nuclear.dm
	code/modules/clothing/masks/breath.dm
	code/modules/clothing/spacesuits/rig.dm