LP1849212: Angular Course Page improvements, OPAC course search

LP1849212: Angular Course Page improvements, OPAC course search

- Apply Course Users functionality to Angular Course Page
Admin UI.
- Condense Course User functionality into its own component,
usable as a dialog and inline.
- Condense Course Material functionality into its own component,
usable as a dialog and inline.
- Add Return to Course List button
- Move Archive Course button above tabs
- Allow Editing of Course Users and Materials
- Set datatype of is_public on Course User to 'bool' from 'boolean'
- Relabel is_public on Course User to "OPAC Viewable?"
- Undo removal of fm-editor in Course List
- Users with the MANAGE_RESERVES permission who are opted
into the course module can view a new Course Info tab on
the item record.
- Course Info tab displays a list of all courses(with link
to the Admin Course Page) item is associated with, and a
list of all instructors associated with those courses.
- Improvements to open-ils.circ.course_users.retrieve.
- Improve visuals when logged in as administrator.
- Implement Course Search OPAC page, based on Advanced Catalog
Search
- Edit Searchbar to include entry for Course Search

Signed-off-by: Kyle Huckins <khuckins@catalyte.io>
Signed-off-by: Jane Sandberg <sandbej@linnbenton.edu>