Add ExperimentWaffleFlag

MST-121 We should allow the business case where a learner can be enrolled into a program, then unenrolled, then enroll into another program with the same course

This is a helpful class when running an experiment, to help
bucket users and keep track of which enrollments to consider
as part of the experiment.

AA-53

Make upgrade to remove duplicate django-countries.

Update ORA to 2.6.16 | Fixes the text_response property to be more backwards-compatible with _old_ ORA blocks.

Allow Block Structures Collect to work in Studio

Upgrade edx-when

Merge pull request #23236 from edx/pwnage101/deng-18-rename_site_configuration_siteconfiguration_values_2.2

Add migration to populate site_values in SiteConfigurationHistory

Block Structures were meant to be gathered using the LMS process,
as it's meant to be an optimized store for the LMS to use. But
there's an argument to be made for at least the Collect side of
the Collect + Transform could be a Studio concern, because it
explicitly needs to avoid user-awareness.

In either event, collect() was broken on devstack before this
commit because Studio's runtime does not permit handler_url
invocation on "thirdparty" XBlocks. Since VideoBlock is not
really third-party (and it's questionable whether there's any
benefit to making the distinction these days), I'm just making
this change to allow Studio to run collect() without error in
the Studio process. This will fix devstack, which does not
properly route these collect() calls to the LMS process (because
celery runs in-proc by default).

* Revert "Ran make migration on third_party_auth (#23253)"

This reverts commit 49be65cc.

* Removing provider.util import

* Removing further provider things

* Adding hash tests

Fix due date extension view.

Run `make upgrade` on edx-platform to update python packages.
PROD-1333

Revert "Ran make migration on third_party_auth"

This reverts commit 49be65cc.

TNL-7094 Remove auto focusing of InlineDiscussion views on load. Removing this unneeded focus management eliminates scroll issues when discussions are contain in an iframe in a parent page.

created logs to track edx-lti.org  errors

Add verified mode to the courseware API

Feanil/add shortuuid

* Ran make migration on third_party_auth and removing skip comment from test_migrations_are_in_sync

Remove the auth_source kwarg in connect_to_mongodb, since we're now relying on authsource (no underscore) and the pymongo Database init does not expect and will not tolerate an auth_source kwarg.

fix very long horizontal scroll for RTL layout

Create MB External ID on creation of a CourseEntitlement in MB Program

Remove DOP libraries from INSTALLED_APPS.

Right now the ORM is very unhappy about the JSONField `site_values`
in SiteConfigurationHistory containing non-JSON (empty strings).  We
cannot even write a data migration using the ORM to populate the field
because that causes a JSONDeserializationError.  Therefore, we must
bypass the ORM and populate the values with raw SQL.

DENG-18

Feanil/remove unused bokchoy pages

Remove DOP apps from INSTALLED_APPS.
Remove DOP libraries from requirements.

These were all un-used on master.

the patched toggle was removed from edx-drf-extensions recently