origin_save: Enable to filter user submitted save requests in Web UI
If a user has submitted save code now requests while being authenticated, he will be able to filter those requests through a new dedicated checkbox in the "Browse save requests" tab of the Save code now Web UI.
Related to #3272 (closed)
Depends on D5679 (I manually hack the Jenkins pipeline until it is landed)
Migrated from D5673 (view on Phabricator)