[pango] (8 commits) Non-fast-forward update to branch speed-up-format-filtering

[Matthias Clasen <matthiasc src gnome org>]

The branch 'speed-up-format-filtering' 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:

  8006b28... fc: Only do filtering by format once
  0c4271b... Move expensive fontconfig calls to a thread
  c24f2e7... Fix up threading issues
  1cebfb2... Call FcInit in a thread
  2b1b79d... Add timing spew for FcInit
  e433f28... Add sysprof tracing support
  296af80... fontconfig: Add some trace marks
  8f576ca... ci: Limit depth of subprojects when cloning

Commits added to the branch:

  13f8625... Add sysprof tracing support (*)
  58e2050... fc: Only do filtering by format once
  24fbeba... Move expensive fontconfig calls to a thread
  8ccde23... Fix up threading issues
  d858e82... Call FcInit in a thread
  51537e2... Add timing spew for FcInit
  ab5d129... fontconfig: Add some trace marks
  d5a598b... ci: Limit depth of subprojects when cloning

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