Add Amazon and Asana providers

Summary: Ref T1536. Ref T2852. Adds providers for Asana and Amazon. See D6248.

Test Plan:
{F46960}

{F46961}

Reviewers: btrahan, chad

Reviewed By: chad

CC: aran

Maniphest Tasks: T1536, T2852

Differential Revision: https://secure.phabricator.com/D6249