[gnome-photos] (4 commits) Non-fast-forward update to branch wip/rishi/buffer-decoder

[Debarshi Ray <debarshir src gnome org>]

The branch 'wip/rishi/buffer-decoder' 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:

  623ba18... Add a convenient C API over the lower-level C++ Rawspeed AP
  2943f5f... raw rawspeed
  4974396... Add PhotosGeglBufferCodecRaw
  470386c... Add convenience APIs
  95019e9... base-item: Use the new GeglBuffer codec API

Commits added to the branch:

  972aef9... Add a convenient C API over the lower-level C++ Rawspeed AP
  6d9a9b5... Add PhotosGeglBufferCodecRaw
  846c693... Add convenience APIs
  2b1d7d5... base-item: Use the new GeglBuffer codec API