[gnome-photos] (3 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:

  13c4ae4... gegl: Allow overriding the number of threads
  6024443... Add photos_gegl_compute_checksum_for_buffer
  06b29c1... tests: Test the GEGL utilities

Commits added to the branch:

  9434188... gegl: Allow overriding the number of threads
  66f331b... Add photos_gegl_compute_checksum_for_buffer
  6c74549... tests: Test the GEGL utilities