R1:c7be6f4aa19e

Task Generation with Transactions, Auxiliary Fields, and Projects

Summary: Ref T2903

Test Plan: Task Generation is visibly functional with additional changes.

Reviewers: epriestley

Reviewed By: epriestley

CC: AnhNhan, aran, Korvin

Maniphest Tasks: T2903

Differential Revision: https://secure.phabricator.com/D5799