tests: Adds a simple wayland compositor example
tests: Adds a simple wayland compositor example

This adds an extremely minimal wayland compositor to tests/interactive
to test the ClutterWaylandSurface actor. Currently this minimal
compositor doesn't support any input, it simply paints client surfaces
fixed at the top-left of the stage.

Reviewed-by: Emmanuele Bassi <049ee2061f71220e5aaf33f5be422fc2a2b06a44@linux.intel.com>


clutter-project/clayland,clutter-project/clayland,ybakos/clayland,ybakos/clayland,clutter-project/clayland