Предательский нож (#112)

* - add: Add betrayal knife.

* - tweak: Small size.

Resources/Textures/White/Objects/Weapons/betrayal_knife.rsi/meta.json

@@ -0,0 +1,22 @@
+{
+    "version": 1,
+    "license": "CC-BY-SA-3.0",
+    "copyright": "Taken from tgstation at https://github.com/tgstation/tgstation/pull/49264/commits/d0dffe7ca643db2624424fdcebf45863f85c0448",
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "states": [
+        {
+            "name": "icon"
+        },
+        {
+            "name": "inhand-left",
+            "directions": 4
+        },
+        {
+            "name": "inhand-right",
+            "directions": 4
+        }
+    ]
+}