Merge pull request #20331 from edx/feanil/add_codeowners

An initial breakdown of our areas of the monolith.

.github/CODEOWNERS

@@ -0,0 +1,42 @@
+# This does not cover all the code in edx-platform but it's a good start.
+
+# Core
+common/djangoapps/student/			@edx/platform-core
+common/djangoapps/third_party_auth/		@edx/platform-authn
+common/lib/xmodule/xmodule/			@edx/platform-core
+lms/djangoapps/course_api/blocks		@edx/platform-core
+lms/djangoapps/courseware/			@edx/platform-core
+lms/djangoapps/grades/				@edx/platform-grades
+lms/djangoapps/instructor/			@edx/platform-core
+lms/djangoapps/instructor_task/			@edx/platform-core
+lms/djangoapps/mobile_api/			@edx/platform-mobile
+openedx/core/djangoapps/contentserver/		@edx/platform-core
+openedx/core/djangoapps/heartbeat/		@edx/platform-core
+openedx/core/djangoapps/oauth_dispatch		@edx/platform-authn
+openedx/core/djangoapps/user_api/		@edx/platform-authn
+openedx/core/djangoapps/user_authn/		@edx/platform-authn
+openedx/features/course_experience/		@edx/platform-courseware
+
+# Core Extensions 
+common/lib/xmodule/xmodule/capa_module.py	@edx/platform-core-extensions
+common/lib/xmodule/xmodule/html_module.py	@edx/platform-core-extensions
+common/lib/xmodule/xmodule/video_module		@edx/platform-core-extensions
+lms/djangoapps/discussion/			@edx/platform-core-extensions
+lms/djangoapps/discussion_api/			@edx/platform-core-extensions
+lms/djangoapps/edxnotes				@edx/platform-core-extensions
+lms/djangoapps/notifier_api/			@edx/platform-core-extensions
+
+# Analytics
+common/djangoapps/track/			@edx/edx-data-engineering
+
+# Credentials
+lms/djangoapps/certificates/			@edx/platform-credentials
+
+# Discovery
+common/djangoapps/course_modes/			@edx/platform-discovery
+common/djangoapps/enrollment/			@edx/platform-discovery
+lms/djangoapps/commerce/			@edx/ecommerce
+lms/djangoapps/experiments/			@edx/rev-team
+lms/djangoapps/learner_dashboard/		@edx/platform-discovery
+openedx/features/content_type_gating/		@edx/rev-team
+openedx/features/course_duration_limits/	@edx/rev-team