Summary | Résumé

Feature:

Introduce a retry_request function to retry failed calls. The default retry is set to 3. This should help deal with the timed out errors we have seen.

Google Directory integration would return members without their details even if an error occurred during the get_user api call. I introduced a new, distinct function to get the members details. If a single error occurs, an empty array is return unless the tolerate error flag is set.
The above also should fix the issue where a group sync would fail due to some of their users missing the primaryEmail key on their details since this is only possible when the get_user call succeeds.