R1:a3b067291f85

Add a couple more files to the core JS package

Summary: Ref T5867. We have a bit more common JS now.

Test Plan: Loaded some pages, saw fewer requests. Sanity-checked these resources against Multimeter in production.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T5867

Differential Revision: https://secure.phabricator.com/D17220