Merge pull request #18325 from edx/hack/course-validation-api

cms/djangoapps/contentstore/api/tests/test_import.py

cms/djangoapps/contentstore/api/tests/test_quality.py

cms/djangoapps/contentstore/api/tests/test_validation.py

cms/djangoapps/contentstore/api/urls.py

cms/djangoapps/contentstore/api/views/__init__.py

cms/djangoapps/contentstore/api/views/course_import.py

cms/djangoapps/contentstore/api/views/course_quality.py

cms/djangoapps/contentstore/api/views/course_validation.py

cms/djangoapps/contentstore/api/views/utils.py

cms/djangoapps/contentstore/views/certificates.py

common/lib/xmodule/xmodule/graders.py

lms/djangoapps/grades/api/v1/views.py

lms/djangoapps/grades/api/views.py

openedx/core/djangoapps/util/forms.py

openedx/core/lib/api/view_utils.py