feat: adds Content Tagging (#32661)

* refactor: moves is_content_creator

from cms.djangoapps.contentstore.helpers to common.djangoapps.student.auth

* feat: adds content tagging app

Adds models and APIs to support tagging content objects (e.g. XBlocks,
content libraries) by content authors. Content tags can be thought of as
"name:value" fields, though underneath they are a bit more complicated.

* adds dependency on openedx-learning<=0.1.0
* adds tagging app to LMS and CMS
* adds content tagging models, api, rules, admin, and tests.
* content taxonomies and tags can be maintained per organization by
  content creators for that organization.

cms/envs/common.py

@@ -1748,6 +1748,10 @@ INSTALLED_APPS = [
     # API Documentation
     'drf_yasg',
 
+    # Tagging
+    'openedx_tagging.core.tagging.apps.TaggingConfig',
+    'openedx.features.content_tagging',
+
     'openedx.features.course_duration_limits',
     'openedx.features.content_type_gating',
     'openedx.features.discounts',