Add @fmotrifork as a contributor

.all-contributorsrc

@@ -938,6 +938,13 @@
       "name": "R.I.Pienaar",
       "avatar_url": "https://avatars0.githubusercontent.com/u/82342?v=4",
       "profile": "http://devco.net/",
+      "contributions": []
+    },
+    {
+      "login": "fmotrifork",
+      "name": "Frederik Mogensen",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/18327738?v=4",
+      "profile": "https://github.com/fmotrifork",
       "contributions": [
       ]
     }