Summary:
This diff adds a babel plugin for the generated view configs which will inline them in the file instead of needing to check the view configs in (fb only)
The way it works is:
- babel reads the code
- looks for type alias `CodegenNativeComponent` in `*NativeComponet.js` files
- run the flow parser on the file source to create a schema
- run the schema into codegen to get the view config source code
- inject the generated source code back into the NativeComponent.js file
- remove the original export
- profit
After this diff we will remove the `js1 build viewconfigs` command and the checked-in NativeViewConfig.js files
Note: since this plugin is not published to open source, for now OSS will continue using the `requireNativeComponent` function
Reviewed By: cpojer
Differential Revision: D15516062
fbshipit-source-id: a8efb077773e04fd9753a7036682eeaae9175e09