audit-logs: added audit-logs on user actions. - adding/deleting ips - adding/deleting emails - edit/create

audit-logger: added convinience wrappers to store web or api action.

audit-logs: added action logs for repository groups.

audit-logs: implement enum sources that should be re-used.

tests: removed soon-to-be deleted test for deprecated action_logger.

cleanup: imports cleanup.

reviewers: added validation and default review rules via API calls. - update/create pull request now validate and update the default reviewer rules.

api: attach the call context variables to request for later usage in API calls.

pull-requests: make sure to skip duplicates of reviewers via PR create method.

pull-request-api: updated logic of closing a PR via API call. - consistent logic via web and API - updated events - updated proper close checks.