compositor-wayland: Add touch support
compositor-wayland: Add touch support

Adds support for touch devices to the wayland backend.

Signed-off-by: Derek Foreman <2f97e0f0bc172406aab8ccd42dab54c95bab8759@osg.samsung.com>
Reviewed-by: Daniel Stone <62e7e355d5d8400fa8384448796af0bf6be4ffae@collabora.com>

krezovic/weston,Fantu/compositor-spice,sir-murray/weston,Fantu/compositor-spice,giucam/weston,krezovic/weston,giucam/weston,Gnurou/weston,sir-murray/weston,Gnurou/weston,Fantu/compositor-spice