origin_save: Add some statsd monitoring metrics
Add a counter for the number of submitted save requests and a gauge to keep track of the number of pending requests to review.
Related to T2124
Migrated from D2419 (view on Phabricator)
Add a counter for the number of submitted save requests and a gauge to keep track of the number of pending requests to review.
Related to T2124
Migrated from D2419 (view on Phabricator)