Add Creative Commons license filter for course img Flickr search
Add Creative Commons license filter for course img Flickr search

Fixes: CNVS-35287

Test Plan:
- With course images enabled go to course->settings
- Open the add course image modal, and search flickr
- the results should be restricted to Public Domain
  Dedication images

Change-Id: I4dbb125047f59bf0b83e01befde08521a0f2990e
Reviewed-on: https://gerrit.instructure.com/106697
Tested-by: Jenkins
Reviewed-by: Chris Hart <b82b40b84a2f06957ec9caf1768340bd6b929cc4@instructure.com>
QA-Review: Dan Sasaki
Product-Review: Chris Ward <341ae4b10181e9ae5056162440771572020800f2@instructure.com>

sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms