Making deathsquad relevant again: clean boogaloo

Created by: Duny-

• Added deathsquad magboots, featuring no slowdown and emo colors.
• Moved deathsquad helmet to /obj/item/clothing/head/helmet/space/rig/deathsquad.
• Created /obj/item/clothing/suit/space/rig/deathsquad. Deathsquad members used to wear some shitty swat armor instead of proper space rig.
• Tweaked armor values for both to be overall stronger, and not weaker, than the station's stuff. Both now have atmos suit level fire protection and the suit can now hold more useful items.
• Deathsquad members no longer spawn with a flashlight, their helmet now has a built-in light.
• Their gloves are now insulated.
• They no longer spawn with any flashbangs.
• They now spawn with an energy shield.
• They now all have a pinpointer. The leader is still the only one with a disk.
• They now spawn with a double extended emergency oxygen tank instead of the other shitty one.
• New deathsquid helmet and suit based on the old sprites, made by Skowron.