[MIRROR] moves obj_integrity and associated procs to the atom level (#8016)

* moves obj_integrity and associated procs to the atom level

* Feex good

* Whoops forgot the maps

Co-authored-by: Kylerace <kylerlumpkin1@gmail.com>
Co-authored-by: GoldenAlpharex <jerego1234@hotmail.com>
Co-authored-by: Gandalf <jzo123@hotmail.com>

code/game/objects/structures/fireaxe.dm

@@ -42,13 +42,13 @@
 	if(iscyborg(user) || I.tool_behaviour == TOOL_MULTITOOL)
 		toggle_lock(user)
 	else if(I.tool_behaviour == TOOL_WELDER && !user.combat_mode && !broken)
-		if(obj_integrity < max_integrity)
+		if(atom_integrity < max_integrity)
 			if(!I.tool_start_check(user, amount=2))
 				return
 
 			to_chat(user, span_notice("You begin repairing [src]."))
 			if(I.use_tool(src, user, 40, volume=50, amount=2))
-				obj_integrity = max_integrity
+				atom_integrity = max_integrity
 				update_appearance()
 				to_chat(user, span_notice("You repair [src]."))
 		else
@@ -62,7 +62,7 @@
 		to_chat(user, span_notice("You start fixing [src]..."))
 		if(do_after(user, 20, target = src) && G.use(2))
 			broken = FALSE
-			obj_integrity = max_integrity
+			atom_integrity = max_integrity
 			update_appearance()
 	else if(open || broken)
 		if(istype(I, /obj/item/fireaxe) && !fireaxe)
@@ -98,7 +98,7 @@
 	if(.)
 		update_appearance()
 
-/obj/structure/fireaxecabinet/obj_break(damage_flag)
+/obj/structure/fireaxecabinet/atom_break(damage_flag)
 	. = ..()
 	if(!broken && !(flags_1 & NODECONSTRUCT_1))
 		update_appearance()
@@ -165,7 +165,7 @@
 	if(open)
 		. += "glass_raised"
 		return
-	var/hp_percent = obj_integrity/max_integrity * 100
+	var/hp_percent = atom_integrity/max_integrity * 100
 	if(broken)
 		. += "glass4"
 	else