[mutter] (27 commits) Non-fast-forward update to branch bilelmoussaoui/without-xwayland

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

The branch 'bilelmoussaoui/without-xwayland' 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:

  4242f57... build: Allow disabling XWayland
  c49e853... CI: Disable xwayland when wayland is disabled

Commits added to the branch:

  a24b14e... x11-display: Make some init calls more compact (*)
  1e95710... x11-display: Init event mask after taking manager selection (*)
  50e89e3... core: Avoid focusing window in presence of Clutter grabs (*)
  fabad0b... wayland: Remove unnecessary COMPOSITOR_GRAB checks (*)
  022f47e... events: Remove obsolete COMPOSITOR_GRAB check (*)
  937651c... display: Remove another COMPOSITOR_GRAB check (*)
  7585604... display: Bypass focus window during grabs (*)
  f73ad1d... display: Remove META_EVENT_ROUTE_COMPOSITOR_GRAB (*)
  d04a197... x11/events: Do not handle enter/leave during grabs (*)
  9001fa9... kms/crtc: Always read the gamma state (*)
  a2ebd10... kms/crtc: Determine gamma support given the gamma length (*)
  b9a5f9a... backend: Make get_cogl_context introspectable (*)
  d7c0ecc... cogl/pipeline: Make Snippet API introspectable (*)
  2fd6372... cogl/snippet: Make API introspectable (*)
  86d3a6b... cogl/snippet: Use "Returns:" for introspection annotations (*)
  9930b5d... x11/selection: Unset selection ownership on shutdown (*)
  c575696... tests/test-client: Add clipboard-set command (*)
  e103395... wayland: Add getter for XWayland manager object (*)
  bdb3440... xwayland: Only warn on X IO errors when X11 is mandatory (*)
  c9e7cf4... xwayland: Add API to send signal to the Xwayland process (*)
  6c0a917... selection: Return an error if trying to transfer from NULL  (*)
  82d9ef7... x11/input-selection-stream: Handle Xwayland going away (*)
  7e8bddc... tests/async-waiter: Keep track of X11 display it was create (*)
  e939d5b... tests: Check that X11 selections handle Xwayland disappeari (*)
  83ed7b7... xwayland: Remove stray newline (*)
  9e2921c... build: Allow disabling XWayland
  579e83b... CI: Disable xwayland when wayland is disabled

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