This release adds an interstitial in the proctored exam experience for learners with exam attempts in the ready_to_resume state, impacting Learners.

updated for quality

* Updating Python Requirements

* change namespaced_switch_name to name

Co-authored-by: Zulqarnain <muhammad.zulqarnain@arbisoft.com>

MST-637: edx-proctoring 3.0.0 now requires a new key for use in ID
generation, starting from same value as SECRET_KEY (pre-rotation, but
rotation never happened for devstack.)

Remote config changes already made for relevant environments.

JIRA:MST-634

Introduce and use a roles_api module, use the roles API in receivers that want to create or delete role assignments.
For new learners and admins, associate their user-role with the customer to which they are linked.
Does not yet specify the enterprise_customer for deletions. We want to maintain current behavior on deletes until we do a data backfill of that field. So for now, we'll continue to delete all assignments held by the deleted user.
Install django-cache-memoize, so that we can memoize roles (not assignments) in the Django cache.

* Removes the sync_enterprise_catalog_query boolean field from the EnterpriseCustomerCatalog model.
* Adds migration to remove the sync_enterprise_catalog_query boolean field.

In SystemWideEnterpriseUserRoleAssignment, Use either applies_to_all_contexts or enterprise_customer
if they are True or non-null, respectively, in determining the result of get_context(),
but continue to return list of all linked enterprise customer UUIDs if not, (which is the current behavior).
This is a small step on our journey to explicitly defining user-role assignments.

We are affected by this issue:
https://github.com/jazzband/django-pipeline/pull/297#issuecomment-264416094

In particular, this occurs when trying to upload js assets to s3, such
as with the Scorm xblock:
https://github.com/overhangio/openedx-scorm-xblock/issues/16

This issue is resolved by upgrading django-pipeline to 2.0.3+, as the
fix was introduced here:
https://github.com/jazzband/django-pipeline/pull/715

This reverts commit 0b32f0a3.

Upgrade edx-enterprise to 3.17.14 | Add enterprise_customer field to the SystemWideEnterpriseUserRoleAssignment model, and updates Django Admin definitions around same.

Pulls in a fix for a deprecated import of
`util.memcache.safe_key`.

Upgrade edx-enterprise to 3.17.12 | Conditionally allows the deletion of individual EnterpriseCourseEnrollment and related LicensedEnterpriseCourseEnrollment records via the Django Admin site, so that site admins can manually delete enterprise enrollments that were created in error.
This is only allowed if a Django settings feature flag is set to True.