Two new certificate statuses are introduced, 'audit_passing' and
'audit_notpassing'. These signal that the GeneratedCertificate is not
to be displayed as a cert to the user, and that they either passed or
did not. This allows us to retain existing grading logic, as well as
maintaining correctness in analytics and reporting.
Ineligible certificates are hidden by using the
`eligible_certificates` manager on GeneratedCertificate. Some places
in the coe (largely reporting, analytics, and management commands) use
the default `objects` manager, since they need access to all
certificates.
ECOM-3040
ECOM-3515
JIRA: TNL-710
IMPORTANT: this commit converts the course_groups
package to using migrations. When deploying to an
existing openedx instance, migration 0001 may fail
with an error indicating that the CourseUserGroup
table already exists. If this happens, running
the 0001 migration first, with the --fake option,
is recommended. After performing this step,
remaining migrations should work as expected.
