Xeno improvements (#6032)

Resources/Textures/Mobs/Aliens/Xenos/burrower.rsi/meta.json

@@ -0,0 +1,28 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from Colonial Marines at commit https://gitlab.com/cmdevs/colonial-warfare/-/commit/f6b3c61fcbfe73a3f0f92edd5fc441ef845017e5 Sprites centered by metalgearsloth",
+  "size": {
+    "x": 64,
+    "y": 64
+  },
+  "states": [
+    {
+      "name": "running",
+      "directions": 4
+    },
+    {
+      "name": "walking",
+      "directions": 4
+    },
+    {
+      "name": "dead"
+    },
+    {
+      "name": "sleeping"
+    },
+    {
+      "name": "crit"
+    }
+  ]
+}