Summary:
Replaces the existing `YellowBox` with a modern one.
Here are the notable changes:
- Sort warnings by recency (with most recent on top).
- Group warnings by format string if present.
- Present stack traces similar to RedBox.
- Show status of loading source maps.
- Support inspecting each occurrence of a warning.
- Fixed a bunch of edge cases and race conditions.
Reviewed By: TheSavior
Differential Revision: D8345180
fbshipit-source-id: b9e10d526b262c3985bbea639ba2ea0e7cad5081