[gtk] (45 commits) Non-fast-forward update to branch heif-demo

[Matthias Clasen <matthiasc src gnome org>]

The branch 'heif-demo' 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:

  762e0bf... Add a quick-and-dirty heif loading test

Commits added to the branch:

  9e6855c... Merge branch 'matthiasc/for-main' into 'main' (*)
  6be466b... Update Nepali translation (*)
  b867b42... cms: Add lcms to the build (*)
  b322621... Add an lcms2 subproject (*)
  2e09436... ci: Update dependencies for msys (*)
  d89f543... API: Add GdkColorProfile (*)
  b29970e... API: Add a GdkTexture::color-profile property (*)
  130140c... API: Add gdk_memory_texture_new_with_color_profile() (*)
  2cb4baf... jpeg: Add color profile support (*)
  b1c4db4... widget-factory: Add gradient rendering test (*)
  9267fdd... gtk-demo: Add a color profile demo (*)
  e8b25a9... API: Add GdkSurface::color-profile (*)
  1227026... API: Add color profile get/set for cairo (*)
  93f9c24... memoryformat: Take a color profile when converting (*)
  7e2c2a0... gdk: Take a profile in gdk_texture_do_download (*)
  71eceb5... gdk: Take a profile in gdk_texture_download_surface (*)
  004aeec... gdk: Take a profile in gdk_memory_texture_from_texture (*)
  d0694a1... png: Handle color profiles (*)
  07f7013... tiff: Add color profile support (*)
  21426fb... gsk: Avoid cairo in icon upload (*)
  b514e0b... memoryformat: Do some gdk_memory_convert() massaging (*)
  4035b4e... memoryformat: Optimize more (*)
  39d21a3... colorprofile: Implement a global transform cache (*)
  eac61df... widget-factory: Add tests for loading color profiles (*)
  897c791... Support color profiles in pixbufs (*)
  5bd2108... x11: Implement support for color profiles (*)
  dbc5102... Fixes for gdk_memory_txture_new_subtexture (*)
  708474d... Add crude color management impl for cairo (*)
  22eec7c... gdk: Add GDK_DEBUG=srgb (*)
  24e9abd... gsk: Upload textures in linear sRGB (*)
  9b73d0f... gsk: Apply gamma to frames (*)
  a7a44c6... gsk: Linearize colors too (*)
  31e39cc... gsk: Linearize gl textures (*)
  bfd301d... gsk: Use stem darkening for glyphs (*)
  6ef4ef5... cairo: Use stem darkening for glyphs (*)
  a6726b5... gsk: Fix caching of textures (*)
  dda83bc... gsk: Refactor a bit (*)
  ebf1ea7... gsk: Do texture conversions in shaders (*)
  2b99f80... gsk: Support flipping gl textures (*)
  6c8c726... API: Add a new constructor for GL textures (*)
  7e6f1f7... gsk: Use GL texture information (*)
  99eac30... glarea: Use the new GL texture constructor (*)
  052e18f... media: Use the new GL texture constructor (*)
  aada796... gdk: Introduce GdkColor (*)
  6a995d7... Add a quick-and-dirty heif loading test

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