[gtk] (10 commits) Non-fast-forward update to branch wip/matthiasc/lottie-stroke

[Matthias Clasen <matthiasc src gnome org>]

The branch 'wip/matthiasc/lottie-stroke' 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:

  16c82c6... Add gsk_path_to_stroke
  65ca4bb... Add an interactive test for stroking
  8c0d96a... path: Add debugging output
  4b2fc23... wip: Interactive join debugging
  2d0af17... wip: curve-editor stroke debugging
  a602155... wip: Enable subdividing

Commits added to the branch:

  51e8410... curve demo: close the path
  39f6470... Privately export gsk_contour_foreach
  bee7dee... Add gsk_path_to_stroke
  912d620... build: Use link_whole for linking our convenience libs
  b1fedfc... Add an interactive test for stroking
  d215e93... wip: curve-editor stroke debugging
  0db9799... debugging shapes
  d7290fa... wip: Subdivide curves before stroking
  581a6ef... wip: more subdivision tweakery
  c5d5de0... wip: some subdivision