create default arc land destination
create default arc land destination

Summary:
Signed-off-by: Arik Sosman <arik@bitgo.com>

add another config property

Signed-off-by: Arik Sosman <arik@bitgo.com>

Reviewers: tyler, zacleids

Reviewed By: zacleids

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D7642

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