Mass-replacement of stat to machine_stat (#48758)

Living and machine stat vars are pretty different, one uses flags and other number-defines.
This should make some other mass-replacements and searches a bit easier.

code/modules/mob/living/silicon/ai/ai.dm

@@ -936,7 +936,7 @@
 	malfhacking = 0
 	clear_alert("hackingapc")
 
-	if(!istype(apc) || QDELETED(apc) || apc.stat & BROKEN)
+	if(!istype(apc) || QDELETED(apc) || apc.machine_stat & BROKEN)
 		to_chat(src, "<span class='danger'>Hack aborted. The designated APC no longer exists on the power network.</span>")
 		playsound(get_turf(src), 'sound/machines/buzz-two.ogg', 50, TRUE, ignore_walls = FALSE)
 	else if(apc.aidisabled)

code/modules/mob/living/silicon/ai/life.dm

@@ -122,7 +122,7 @@
 		AIarea = get_area(src)
 		if(AIarea)
 			for (var/obj/machinery/power/apc/APC in AIarea)
-				if (!(APC.stat & BROKEN))
+				if (!(APC.machine_stat & BROKEN))
 					theAPC = APC
 					break
 		if (!theAPC)

code/modules/mob/living/simple_animal/hostile/hostile.dm

@@ -226,7 +226,7 @@
 				return FALSE
 			if(P.has_cover &&!P.raised) //Don't attack invincible turrets
 				return FALSE
-			if(P.stat & BROKEN) //Or turrets that are already broken
+			if(P.machine_stat & BROKEN) //Or turrets that are already broken
 				return FALSE
 			return TRUE