[gnome-photos] (13 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:

  e2effe9... Port to G_APPROX_VALUE
  ca9bea5... gegl: Add a function to calculate the inverse Jacobian for 
  58ecc93... Add PhotosGeglBufferCodec
  ec2801a... Add PhotosGeglBufferLoader
  fd57e0e... Add PhotosGeglBufferLoaderBuilder
  52e90da... Add PhotosGeglBufferCodecJpeg
  6a06ad5... Add PhotosGeglBufferCodecPng
  b9ad6a0... Add convenience APIs
  e0ead32... base-item: ...
  eb44991... base-item

Commits added to the branch:

  ccbdb3e... build: Split common code into a private shared library
  bb70945... build: Remove redundant if branch
  8bc9b19... build: Ensure that the Git submodules are kept updated
  91982aa... Port to G_APPROX_VALUE
  41f757b... gegl: Add a function to calculate the inverse Jacobian for 
  fc5dd96... Add PhotosGeglBufferCodec
  8576cc6... Add PhotosGeglBufferLoader
  4e63f81... Add PhotosGeglBufferLoaderBuilder
  626367e... Add PhotosGeglBufferCodecJpeg
  abbd5f1... Add PhotosGeglBufferCodecPng
  8b22d3e... Add convenience APIs
  ed9e8d8... base-item: ...
  10c1643... base-item