Remaining use case was when we move the pointer. This doesn't change
geometry so we can just use a wl_display_roundtrip() to make sure
we get the request to the server and receive the resulting events.
When moving a test surface, use a frame callback to make sure the
surface has been moved and the geometry updated. The compositor may
delay updating the transform matrices, but once we get the frame
callback we know the surface has been repainted and the geometry
updated.
This adds a weston-test-runner for the weston test extension and
some weston test client helper methods.
Converted keyboard-test to use the new test interface, runner,
and helper methods.
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=56822
Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>