Added a new invalidator file for testing purposes.

Author: BethanyG

exercises/practice/binary/.meta/config.json

@@ -23,7 +23,11 @@
     ],
     "example": [
       ".meta/example.py"
+    ],
+    "invalidator": [
+      "tests.toml"
     ]
+
   },
   "source": "All of Computer Science",
   "source_url": "https://www.wolframalpha.com/examples/mathematics/numbers/base-conversions"