Add SNAPL Flipper Plugin

Summary:
This stack adds a SNAPL Video Logs Flipper Plugin.
In this commit I created the skeleton for the desktop and the client sides of the plugin.

Differential Revision: D29065783

fbshipit-source-id: e204a465e64ede9479665fcbbb6be34643de5218

desktop/static/icons.json

@@ -597,5 +597,8 @@
   ],
   "app-microsoft-windows-outline": [
     24
+  ],
+  "camcorder-live": [
+    16
   ]
 }