Summary:
Ref T4222. A few diffs from now, `CelerityResourceMap` will have a `CelerityResources` inside of it:
- Rename `resolvePackage()` to `getResourceNamesForPackageHash()`. This isn't a functional change, it's just making it clear what it does.
- Add `getResourceDataForName()`, to push details about storage into `CelerityResources`.
Test Plan: Reloaded a bunch of pages, rebuilt map.
Reviewers: btrahan, hach-que
Reviewed By: hach-que
CC: aran
Maniphest Tasks: T4222
Differential Revision: https://secure.phabricator.com/D7869