Add @chfsx as a contributor

Author: snipe

.all-contributorsrc

@@ -3361,6 +3361,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "chfsx",
+      "name": "Fabian Schmid",
+      "avatar_url": "https://avatars.githubusercontent.com/u/6661332?v=4",
+      "profile": "http://sr.solutions",
+      "contributions": [
+        "code"
+      ]
     }
   ]
 }