[gnome-photos] (6 commits) Non-fast-forward update to branch wip/rishi/unit-tests-gegl

[Debarshi Ray <debarshir src gnome org>]

The branch 'wip/rishi/unit-tests-gegl' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  b023835... gegl: Allow overriding the number of threads
  06078c6... Add photos_gegl_compute_checksum_for_buffer
  b32d5cb... tests: Test the GEGL utilities
  ad8952b... gegl: Be more strict about what is acceptable
  df3f543... gegl: Add photos_gegl_pixbuf_new_from_buffer

Commits added to the branch:

  7128f1d... gegl: Be more strict about what is acceptable (*)
  aeff4c3... gegl: Add photos_gegl_pixbuf_new_from_buffer
  d6ce090... gegl: Allow overriding the number of threads
  3c6f782... Add photos_gegl_compute_checksum_for_buffer
  36b054b... tests: Test the GEGL utilities
  4fed947... gegl, thumbnailer: Don't use gegl:save-pixbuf

(*) This commit already existed in another branch; no separate mail sent