Adds new shutter sound and nerfs blastdoor sound (#74945)

## About The Pull Request

https://user-images.githubusercontent.com/66640614/233877626-31aedf44-524c-45bf-9700-d0caac3b2a87.mp4

<details>
<summary>Comparison of the two sounds.</summary>


https://user-images.githubusercontent.com/66640614/233873445-05feb33c-09da-4bfd-90f1-5947a0f2a599.mp4

### **It having two different sound effects is just to show what they
both sound like; in-game the shutters just have the new sound for
opening and closing.**
</details>

Adds a rolling shutter sound for our shutters. Just a thematic
improvement, and I like the clacks of the rolling shutters.

Also turns down the blastdoor sound effect because 

![image](https://user-images.githubusercontent.com/66640614/233873528-ed3d0b1f-7941-430c-a6e7-3ced89667bd6.png)

## Why It's Good For The Game
Just a thematic improvement, and I like the clacks of the rolling
shutters.

## Changelog
🆑 Tattle
sound: shutters have a unique sound effect
/🆑

---------

Co-authored-by: tattle <article.disaster@gmail.com>

code/game/machinery/doors/passworddoor.dm

@@ -60,10 +60,10 @@
 	switch(animation)
 		if("opening")
 			flick("opening", src)
-			playsound(src, 'sound/machines/blastdoor.ogg', 30, TRUE)
+			playsound(src, 'sound/machines/blastdoor.ogg', 50, TRUE)
 		if("closing")
 			flick("closing", src)
-			playsound(src, 'sound/machines/blastdoor.ogg', 30, TRUE)
+			playsound(src, 'sound/machines/blastdoor.ogg', 50, TRUE)
 		if("deny")
 			//Deny animation would be nice to have.
 			playsound(src, 'sound/machines/buzz-sigh.ogg', 30, TRUE)

code/game/machinery/doors/poddoor.dm

@@ -14,9 +14,14 @@
 	resistance_flags = FIRE_PROOF
 	damage_deflection = 70
 	can_open_with_hands = FALSE
+	/// The recipe for this door
 	var/datum/crafting_recipe/recipe_type = /datum/crafting_recipe/blast_doors
-	var/deconstruction = BLASTDOOR_FINISHED // deconstruction step
+	/// The current deconstruction step
+	var/deconstruction = BLASTDOOR_FINISHED
+	/// The door's ID (used for buttons, etc to control the door)
 	var/id = 1
+	/// The sound that plays when the door opens/closes
+	var/animation_sound = 'sound/machines/blastdoor.ogg'
 
 /datum/armor/door_poddoor
 	melee = 50
@@ -132,10 +137,10 @@
 	switch(animation)
 		if("opening")
 			flick("opening", src)
-			playsound(src, 'sound/machines/blastdoor.ogg', 30, TRUE)
+			playsound(src, animation_sound, 50, TRUE)
 		if("closing")
 			flick("closing", src)
-			playsound(src, 'sound/machines/blastdoor.ogg', 30, TRUE)
+			playsound(src, animation_sound, 50, TRUE)
 
 /obj/machinery/door/poddoor/update_icon_state()
 	. = ..()

code/game/machinery/doors/shutters.dm

@@ -9,6 +9,7 @@
 	armor_type = /datum/armor/poddoor_shutters
 	max_integrity = 100
 	recipe_type = /datum/crafting_recipe/shutters
+	animation_sound = 'sound/machines/shutter.ogg'
 
 /obj/machinery/door/poddoor/shutters/preopen
 	icon_state = "open"

sound/machines/license.txt

@@ -5,3 +5,6 @@ They have been licensed under CC-BY 3.0, which can be found at http://creativeco
 coffeemaker_brew.ogg originally made by Adriana Lopez (Acekat13X31), edited to reduce length and added fade
 (https://freesound.org/people/Acekat13X31/sounds/515685/)
 This is licensed under CC-BY 4.0, found at https://creativecommons.org/licenses/by/4.0/
+
+shutter.ogg adapted from Joseph Sardin on BigSoundBank
+https://bigsoundbank.com/detail-2475-manual-roller-shutter-closing-out-2.html