Add wall mounted lockers (#10673)

Resources/Prototypes/Entities/Structures/Storage/Closets/wall_lockers.yml

@@ -0,0 +1,48 @@
+- type: entity
+  id: BaseWallLocker
+  placement:
+    mode: SnapgridCenter
+  abstract: true
+  components:
+  - type: Clickable
+  - type: InteractionOutline
+  - type: WallMount
+    arc: 180
+  - type: Sprite
+    drawdepth: WallMountedItems
+    netsync: false
+    sprite: Structures/Storage/wall_locker.rsi
+    layers:
+    - state: door
+  - type: Destructible
+    thresholds:
+    - trigger:
+        !type:DamageTrigger
+        damage: 50
+      behaviors:
+      - !type:DoActsBehavior
+        acts: ["Destruction"]
+      - !type:PlaySoundBehavior
+        sound:
+          path: /Audio/Effects/metalbreak.ogg
+      - !type:SpawnEntitiesBehavior
+        spawn:
+          SheetSteel1:
+            min: 1
+            max: 2
+  - type: Storage
+    capacity: 100
+  - type: UserInterface
+    interfaces:
+    - key: enum.StorageUiKey.Key
+      type: StorageBoundUserInterface
+  - type: ContainerContainer
+    containers:
+      storagebase: !type:Container
+        ents: []
+
+- type: entity
+  id: WallLocker
+  parent: BaseWallLocker
+  name: wall locker
+  description: A locker built into the wall.

Resources/Textures/Structures/Storage/wall_locker.rsi/meta.json

@@ -0,0 +1,23 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "https://github.com/space-wizards/space-station-14/pull/10673, modified from TGstation commit 4a274a6e4b195dfcaffd20d7348631131418ecb5",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "door"
+    },
+    {
+      "name": "locked"
+    },
+    {
+      "name": "unlocked"
+    },
+    {
+      "name": "welded"
+    }
+  ]
+}