ingest canvas html content

[shanbady]

What are the relevant tickets?

Closes https://github.com/mitodl/hq/issues/8436

Description (What does it do?)

This PR makes it so:

• we include published html/wiki content and assignment pages as part of ingesting a canvas course.
• explicitly filter out contents of the tutorbot folder even if it is somehow included in the files_meta.xml (out of abundance of caution)

How can this be tested?

1. checkout main
2. restart celery
3. ingest a canvas course: python manage.py backpopulate_canvas_courses --canvas-ids 34062 --overwrite
4. view the list of files that were ingested: LearningResource.objects.filter(readable_id__istartswith="34062").first().runs.first().content_files.all().values_list("source_path", flat=True)
5. note that it is empty for this particular course.
6. do the same for another with published files:
   python manage.py backpopulate_canvas_courses --canvas-ids 34062 --overwrite

LearningResource.objects.filter(readable_id__istartswith="14566").first().runs.first().content_files.all().values_list("source_path", flat=True)

7. note the files and filetypes
8. checkout this branch
9. restart celery
10. re-run the backpopulate commmands for each
11. note that published html content exists for both courses

Additional Context

• This PR also includes an extra check to filter out web_resources/ai/tutor just in case it were to inadvertently end up in files manifest.
• The files that have assignment_settings.xml also have an extra check to see if it is only visible to instructors

[mbertrand]

LGTM 👍

[mbertrand]

Just curious why only cccv1p0 is used here (and elsewhere in this code) and not imscp, lom, and lomimscc