Adds top surgery scar markings to the character creator (#22806)

* Adds top surgery scar markings to the character creator

* Darkens scars and adds new short and long variants

Resources/Textures/Mobs/Customization/scars.rsi/meta.json

@@ -12,8 +12,16 @@
       "directions": 4
     },
     {
-      "name": "scar_eye_right",
-      "directions": 4
+        "name": "scar_eye_right",
+        "directions": 4
+    },
+    {
+        "name": "scar_top_surgery_short",
+        "directions": 4
+    },
+    {
+        "name": "scar_top_surgery_long",
+        "directions": 4
     }
   ]
 }