Summary:
See PHI1023. Ref T7607. Occasionally, companies need their billing address (or some other custom text) to appear on invoices to satisfy process or compliance requirements.
Allow accounts to have a custom "Billing Name" and a custom "Billing Address" which appear on invoices.
Test Plan: {F6134707}
Reviewers: amckinley
Reviewed By: amckinley
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T7607
Differential Revision: https://secure.phabricator.com/D19979
