Summary: An empty .watchmanconfig is required inside the application resources for the plugin loading to work. This diffs adds the file to the `static` folder, which is copied to the application ressources.
Reviewed By: jknoxville
Differential Revision: D13376834
fbshipit-source-id: 1b34a89c5be6f938a640c79ddb3e9ea784bd2d22
