Basic Faithless Mob (#72479)

## About The Pull Request
Turns the faithless mob into a basic mob with unique behaviors, it will
now break lights and drag around victims bodies. Can also punch open
airlocks if they can be opened.
## Why It's Good For The Game
Now the faithless mob has its own unique behavior and it is cool to see
more AI variety.
## Changelog
🆑
add: Faithless will now also break lights and drag victims around
refactor: Faithless into basic mob
/🆑

code/datums/ai/basic_mobs/basic_subtrees/attack_obstacle_in_path.dm

@@ -25,6 +25,8 @@
 	action_cooldown = 1 SECONDS
 	/// If we should attack walls, be prepared for complaints about breaches
 	var/can_attack_turfs = FALSE
+	/// Tries to bump open airlocks with an attack
+	var/bump_open_airlock = FALSE
 
 /datum/ai_behavior/attack_obstructions/perform(delta_time, datum/ai_controller/controller, target_key)
 	. = ..()
@@ -76,3 +78,6 @@
 	if (basic_mob.see_invisible < object.invisibility)
 		return FALSE
 	return TRUE // It's in our way, let's get it out of our way
+
+/datum/ai_planning_subtree/attack_obstacle_in_path/low_priority_target
+	target_key = BB_LOW_PRIORITY_HUNTING_TARGET

code/datums/ai/basic_mobs/basic_subtrees/speech_subtree.dm

@@ -106,3 +106,7 @@
 	dog_pawn.update_dog_speech(src)
 
 	return ..()
+
+/datum/ai_planning_subtree/random_speech/faithless
+	speech_chance = 1
+	emote_see = list("wails.")