Summary:
To prevent people from linking file:// or other URLs inside RN WebViews, default <WebView> to not allowing those types of URLs.
This adds the originWhitelist to specify other schemes or domains to be allowed.
If the url is not allowed, it will be opened in Safari/by the OS instead.
Reviewed By: yungsters
Differential Revision: D7833203
fbshipit-source-id: 6881acd3b434d17910240e4edd585c0a10b5df8c
634e7e11e3
