generalize draft import/export TNL-574

add test for videomodule

Import drafts handles modules w/o xml_attributes
and ones using the old parent_sequential_url pointer

Handle drafts for modules which don't define nor extract xml_attributes

Support  and  in get_items qualifiers

Unit test for   value query
Add email template for verified certificate date
Improve rerun test

for troubleshooting TNL-692
Commenting out flaky string input test case
Advanced Setting for "Video Upload Pipeline".
Feature Flag for "ENABLE_VIDEO_UPLOAD_PIPELINE".
CMS REST API for video_upload.
adding new video uploads page - first pass
Integrate UI setup with server code.
Add server-side unit tests.