feat: Ports the Tomb of the Unknown Employee (#11664)

Resources/Prototypes/Entities/Structures/Furniture/memorial.yml

@@ -5,7 +5,7 @@
   description: Commemorating something.
   components:
   - type: Sprite
-    sprite: Structures/Furniture/memorial.rsi
+    sprite: Structures/Furniture/Memorials/generic_memorial.rsi
     state: memorial
   - type: Transform
     noRot: true
@@ -20,3 +20,26 @@
       layer:
       - WallLayer
   - type: InteractionOutline
+
+# At 7:30 AM on March 8th, 2017, ArcLumin, a SS13 contributor, died in a fatal car crash on impact.
+# Rest in peace, man. You did good work.
+# When a contributor for SS13 dies, all codebases feel it and suffer.
+# We may disagree on whether farts should be a thing, or what color to paint the bikeshed,
+# but we are all contributors together.
+# Goodbye, man. We'll miss you.
+# This memorial has been designed for him and any future coders to perish.
+- type: entity
+  id: SS13Memorial
+  parent: BaseStructure
+  name: Tomb of the Unknown Employee
+  description: |
+    Here rests an unknown employee
+    Unknown by name or rank
+    Whose acts will not be forgotten
+  components:
+    - type: Sprite
+      sprite: Structures/Furniture/Memorials/ss13_memorial.rsi
+      state: memorial
+      drawdepth: Mobs
+      noRot: true
+      offset: "0.0,0.5"

Resources/Textures/Structures/Furniture/Memorials/ss13_memorial.rsi/meta.json

@@ -0,0 +1,14 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "https://github.com/tgstation/tgstation/commit/66ae31b0be61d88cd95405026389fb0e093bd285",
+  "size": {
+    "x": 32,
+    "y": 64
+  },
+  "states": [
+    {
+      "name": "memorial"
+    }
+  ]
+}