Angular Course Page Improvements

Angular Course Page Improvements

- 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

Signed-off-by: Kyle Huckins <khuckins@catalyte.io>
 Changes to be committed:
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-associate-material.component.html
	copied:     Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-page.component.ts -> Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-associate-material.component.ts
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-associate-users.component.html
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-associate-users.component.ts
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-list.component.html
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-list.component.ts
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-page.component.html
	modified:   Open-ILS/src/eg2/src/app/staff/admin/local/course-reserves/course-page.component.ts
	modified:   Open-ILS/src/eg2/src/app/staff/share/course.service.ts