Summary: public
This is not only to put the files on a place where it makes more sense but also to allow to use ES6 features on them as `/packager` is not whitelisted on `babel`.
Reviewed By: mkonicek
Differential Revision: D2577267
fb-gh-sync-id: b69a17c0aad349a3eda987e33d1778d97a8e1549