Refactors faction lists to use getters and setters and be cached (#94490)

code/modules/mining/equipment/kinetic_crusher/trophies_fauna.dm

@@ -231,7 +231,7 @@
 	for(var/i in 1 to summon_amount)
 		var/turf/drop_off = find_dropoff_turf(target, user)
 		var/mob/living/basic/mining/demon_afterimage/crusher/friend = new(drop_off)
-		friend.faction = list(FACTION_NEUTRAL)
+		friend.set_faction(list(FACTION_NEUTRAL))
 		friend.befriend(user)
 		friend.ai_controller?.set_blackboard_key(BB_BASIC_MOB_CURRENT_TARGET, target)
 	COOLDOWN_START(src, summon_cooldown, 30 SECONDS)

code/modules/mining/lavaland/mining_loot/megafauna/blood_drunk.dm

@@ -66,7 +66,7 @@
 /obj/item/melee/cleaving_saw/attack(mob/living/target, mob/living/carbon/human/user, list/modifiers, list/attack_modifiers)
 	var/is_open = HAS_TRAIT(src, TRAIT_TRANSFORM_ACTIVE)
 	if(!is_open || swiping || !target.density || get_turf(target) == get_turf(user))
-		for(var/found_faction in target.faction)
+		for(var/found_faction in target.get_faction())
 			if(!(found_faction in nemesis_factions))
 				continue
 			if(is_open)