Add wiringPiNim package (#556)

packages.json

@@ -6934,6 +6934,21 @@
     "license": "MIT",
     "web": "https://docs.python.org/2/library/calendar.html"
   },
+  {
+    "name": "wiringPiNim",
+    "url": "https://github.com/ThomasTJdev/nim_wiringPiNim",
+    "method": "git",
+    "tags": [
+      "wrapper",
+      "raspberry",
+      "rpi",
+      "wiringpi",
+      "pi"
+    ],
+    "description": "Wrapper that implements some of wiringPi's function for controlling a Raspberry Pi",
+    "license": "MIT",
+    "web": "https://github.com/ThomasTJdev/nim_wiringPiNim"
+  },
   {
     "name": "redux",
     "url": "https://github.com/pragmagic/redux.nim",