Plays rustle sound when inserting or opening a backpack. (#2890)

* SoundCollection

* Works

* Applied review

* Waah

* Working

* e

* Adjust sound collection serialization

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>

Resources/Prototypes/Entities/Clothing/Back/backpacks.yml

@@ -15,6 +15,7 @@
     sprite: Clothing/Back/Backpacks/backpack.rsi
   - type: Storage
     capacity: 100
+    storageSoundCollection : storageRustle
 
 - type: entity
   parent: ClothingBackpack

Resources/Prototypes/Entities/Clothing/Back/duffel.yml

@@ -15,7 +15,8 @@
     - back
   - type: Storage
     capacity: 100
-
+    storageSoundCollection : storageRustle
+    
 - type: entity
   parent: ClothingBackpackDuffel
   id: ClothingBackpackDuffelEngineering

Resources/Prototypes/Entities/Clothing/Back/satchel.yml

@@ -15,7 +15,8 @@
     sprite: Clothing/Back/Satchels/satchel.rsi
   - type: Storage
     capacity: 100
-
+    storageSoundCollection : storageRustle
+    
 - type: entity
   parent: ClothingBackpackSatchel
   id: ClothingBackpackSatchelEngineering