ENT-2117 | Creating new endpoint for enterprise learner portal. Includes small refactor of programs_enrollment GET logic, sowe do not need to duplicate the logic (#21258)

Adding new course_overview internal api

CourseOverview serializer work

Removing enterprise learner portal djangoapp from this repo

Removing ent learner portal url

Minor cleanups

Updating serializers again

typo

adding some tests and quality fixes

more quality fixes

Fixing test

Adding in an import i removed

mroytman/educator 4432 course level grade filter

JIRA:EDUCATOR-4541

* add management command to link program enrollments to users

This new API endpoint differs from the existing Grades API
in that (i) it only includes grades for users enrolled with a
ProgramCourseEnrollment and (ii) it alters its return code
depending on whether any student's grade failed to load.

EDUCATOR-4529

* Convert to using ExitStack instead of nested.

nested is not available in Python3.

* Use ExitStack from contextlib2.

ExitStack has not been backported to the Python 2.7 standard library and
contextlib.nested is no longer available in Python 3.5.  We need to be
able to use something in both 2 and 3 as we transition so we'll pull in
contextlib2 which has backports of the full python3 contextlib.

Fix more test collection.

We stopped using it but forgot to remove it from the import.

Added edx-when's FieldData

EDUCATOR-4554
This fixes a bug where extended due dates were visible in the outline but not reflected on the courseware pages, resulting in problems not being submittable past the due date.
In order for edx-when to work on courseware pages, it has to be more careful about field inheritance, which version 0.2 achieves.

BOM-85

BOM-83 Removed usages of bulk_assertion

removed usages of bulk_assertion

changes made to comply quality failure

removing test-bulk assertions.

Override theme with site_theme query param

he builtin basestring abstract type was removed. Use str instead.

BOM-84

Don't jam LOGIN_REDIRECT_WHITELIST into devstack_docker settings, we already define it in devstack (and we read private.py from devstack).

Feanil/upgrade mongodb proxy

BOM-70

Update the version.

BOM-79 

Revert "[BB-873] Support for filters, and multiple roots in problem response reports"

More test collection fixes.

[BB-873] Support for filters, and multiple roots in problem response reports

-Remove Depricated View and tests

BOM-80

Revert "BOM-70"