Dlichen/AA-204

Make the ExperimentWaffleFlag respect course masquerading when checki…

Make the ExperimentWaffleFlag respect course masquerading when checking if it's active for a specific enrollment

Co-authored-by: Sankar Raj <sankar.raj@crystaldelta.com>

Added upsell tracking to the course upgrade all button on the program dashboard so we have a better understanding of when users are clicking our upsell links.

Python Requirements Update

* using new welcome template when redirected from enterprise proxy login view

* enabling safe redirects to enterprise learner portal from login in devstack

* ading admin portal to login redirect whitelist

* running make upgrade to version bump edx-enterprise

Add edX Django Rest Framework Extensions CSRF App URLS to Studio

BUG: fixes for front end work and to align with data requirements.

The Demographics CTA is used to ask users to respond to the optional
questions. This API and model support the API being dismissed by the
user so they are not bothered by it.

This PR updates the track_ecommerce_events.js to allow imports into webpacked code & 
adds upsell tracking to the course upgrade buttons on the program dashboard. We are doing this so we have a better understanding of when users are clicking our upsell links.

* Commits:
  Handle zendesk_proxy AttributeError

AA-234: Switch link in dates widget if Course Home MFE is active

ENH adding country to SAML mapping config

MICROBA-487 Add button class to CTA to remove text-decoration on hover

[BD-6] Use updated django-wiki version, OEP-18 compliant and compatible with Python 3.8.

* MST-331 Add cors header configs to CMS so it can be turned on

* feedback

Python Requirements Update

[BD-10] [DEPR-93] Remove font reference from edx-pattern-library in styles and moved OpenSans fonts to static fonts (#24176)