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`.