libweston: Implement wl_output version 3 (release request)
libweston: Implement wl_output version 3 (release request)

Signed-off-by: Quentin Glidic <241385a0e41ea713327e189bce1062decf7c1eb5@sardemff7.net>
Reviewed-by: Emre Ucan <5fca7aad99a7378ab54208bee0c556f327b75246@de.adit-jv.com>
Reviewed-by: Pekka Paalanen <0f6ae7001e34c37b02fb2c1c2573ddf8f442136a@collabora.co.uk>

sir-murray/weston,krezovic/weston,sir-murray/weston,krezovic/weston