add external_user_key to response and add ability to search by username, email, or external user key

Code review comments - EDUCATOR-4319

undoing changes temporarily

undoing changes temporarily

Fixed exception handling

re-added changes after hard reset

removed waffle flag (wrong merge

removed waffle flag (wrong merge

* INCR-413: Run python-modernize and isort

* INCR-413: Fix for text_type usage

* Add IdentityServer3 Backend

This adds a backend for users who want to use IdentityServer3 as their
SSO provider. It can be used with the OAuth2ProviderConfig in django
admin to point to an external provider.

DE-1510

To toggle proctored exam advanced settings

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.

waffle flag - studio.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.
Added CR comments - moved UI vis toggle to template instead of js. Moved waffle flag to waffle.py

waffle flag - studio.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.
Added CR comments - moved UI vis toggle to template instead of js. Moved waffle flag to waffle.py

waffle flag - studio.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.
Added CR comments - moved UI vis toggle to template instead of js. Moved waffle flag to waffle.py
Updated JS UT and acceptance

Move common/djangoapps/enrollment to openedx/core/djangoapps/enrollments

Fix Pylint for enrollments

README for enrollments app

Move command arguments to common settings

Move command parameter arguments, resend-days and days-range, to
common settings. This will help in creating a consistency when the
default values are changed in the future.

LEARNER-7313

Bumped edx-enterprise version and added cornerstone app

Updating Bokchoy testing database cache (#20713)

complete waiting enrollments. fixed

Remove microsites from user_authn
DEPR-30

Remove microsites from certificates
DEPR-26

Remove microsites from shoppingcart
DEPR-27

Updating Bokchoy testing database cache (#20715)

add arch decision of computation of course-user discount

Mark missing string for internationalization

Remove microsites from static_template_view
DEPR-28

README for commerce and shoppingcart

README for certificates

README for course_experience

geoip2: update maxmind geolite country database

user existence check updated to use email only

Bumped edx-when

Use our fork of this repo instead of the mitocw one.

Make platform bootstrap footer match other footer

Changes:
- Add logo back
- Fix up spacing
- Change font sizes and color

Mark alt text for translation

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.

waffle flag - test_settings.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.

waffle flag - studio.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.
Added CR comments - moved UI vis toggle to template instead of js. Moved waffle flag to waffle.py

waffle flag - studio.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.
Added CR comments - moved UI vis toggle to template instead of js. Moved waffle flag to waffle.py

waffle flag - studio.show_review_rules
To toggle proctored exam advanced settings
acceptance testing update.
Added CR comments - moved UI vis toggle to template instead of js. Moved waffle flag to waffle.py
Updated JS UT and acceptance

Move common/djangoapps/enrollment to openedx/core/djangoapps/enrollments

Fix Pylint for enrollments

README for enrollments app

Move command arguments to common settings

Move command parameter arguments, resend-days and days-range, to
common settings. This will help in creating a consistency when the
default values are changed in the future.

LEARNER-7313

Bumped edx-enterprise version and added cornerstone app

Updating Bokchoy testing database cache (#20713)

complete waiting enrollments. fixed

Remove microsites from user_authn
DEPR-30

Remove microsites from certificates
DEPR-26

Remove microsites from shoppingcart
DEPR-27

Updating Bokchoy testing database cache (#20715)

add arch decision of computation of course-user discount

Mark missing string for internationalization

Remove microsites from static_template_view
DEPR-28

README for commerce and shoppingcart

README for certificates

README for course_experience

geoip2: update maxmind geolite country database

user existence check updated to use email only

Bumped edx-when

Use our fork of this repo instead of the mitocw one.

Make platform bootstrap footer match other footer

Changes:
- Add logo back
- Fix up spacing
- Change font sizes and color

Mark alt text for translation

INCR-251: Make compatible with Python 3.x without breaking Python 2.7 support --> common/test/acceptance/tests/discussion (#20646)

MathJax format updated to HTMLorMML instead of SVG
Test files updated in lms.

Added a feature flag to disable honor mode certificates for
edx.org, by default set to false to allow honor mode certificates
for open community.

PROD-269

student enrollments. We no longer need to parse the course key into an
opaque key since the opaque key class can already handle strings and the
parsing happens there. We also need to specify which course enrollment
are we editing or else the reference is lost when saving the edits.

Augment content_type_gating tests to detect the failure case from the original REVMI-34 implementation