Expose "withAnyProjects()" in the UI
Summary:
Add an "Any Projects" field to the custom search UI.
This is starting to get ugly but we'll do a design pass on it before toooo long.
Test Plan: {F20423}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1610
Differential Revision: https://secure.phabricator.com/D3632