allow providing the user key by making the master key deactivation transaction last, and fully signing the destination tag enforcement transaction
allow providing the user key by making the master key deactivation transaction last, and fully signing the destination tag enforcement transaction

Reviewers: benchan, alex

Reviewed By: alex

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D5548

BitGo/BitGoJS,BitGo/BitGoJS,BitGo/BitGoJS,BitGo/BitGoJS