[Video Library] Begin import of Gallantries video library to GTN (WIP)

[shiltemann]

This will import the metadata about recordings associated with GTN tutorials/slides from the gallantrie video library directly into the GTN

implementation:

• Update recordings dropdown on topic pages
• Update recordings dropdown on tutorial overview box
• Add recordings dropdown to first slide of slide deck
• Remove obsolete code importing Gallantries video library
• import all video metadata from Gallantries
• update schemas
• validator/linter?
• separate video page for each tutorial like in gallantries video library
• link to tutorial at time of recording
  • account for redirect_froms
  • caching links to archive (@hexylena)
• add Peter's new video
• "Add your own recording" button on recordings page to encourage contributions

outreachy things:

• News item
• FAQ with instructions for adding a recording
• FAQ with instructions for making the recording itself
• list recordings contributions on contributors page (also add events) @hexylena
• GTN news bot to add updates about new recordings? @hexylena
• Google form to submit recordings
  • post new submissions to goats/hub_social matrix channels? (with instructions for what to do with it)
  • automatically create PR from form submissions

other:

• Add a snippet to embed associated video inside tutorial (or video from other tutorials/topics)
• Deal with case of multiple videos per tutorial -> support for playlists

Stretch goals:

• import also "free floating" videos from video library such as webinars
• import all affiliations from video library and update existing contributors file
• import the 'embed' button from the old video library which was useful for instructors
• add cover image to the 'branding' page
• Merge automated videos into videos.
• Index page with all videos
• RSS feed for videos

metadata to provide:

recordings:
  - youtube_id:  CGSBeCW3rpA  
    date: '2023-05-19'
    length: 1H37M
    speakers:
      - shiltemann
    captioners:
      - shiltemann
    galaxy_version: '23.01'