[gtk] (12 commits) ...Merge branch 'wip/chergert/gsk-gl-texture-library' into 'main'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  79fad9f... gtk-demo: Don't hardcode a title font (*)
  9dbd137... gsk/gl: make max-frame-age configurable (*)
  7062411... gsk/gl: ignore max_entry_size when zero (*)
  a66a0dd... gsk/gl: only clear glyph cache durign reclaimation (*)
  2efc172... gsk/gl: check for format as well (*)
  1b9da2b... gsk/gl: allow configuring atlas size (*)
  9d56f44... gsk/gl: rename glyphs to glyphs_library (*)
  9defc7f... gsk/gl: add more control over shader generation (*)
  6b23fe3... gsk/gl: pin atlases to single texture library (*)
  c64836e... gsk/gl: make texture libraries more autonomous (*)
  cbbca38... gsk/gl: use consistent library naming (*)
  dcc7cf7... Merge branch 'wip/chergert/gsk-gl-texture-library' into 'ma

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