tests: sync example.xml with wayland.xml

These are the protocol.xml changes from:
66a26aeb: protocol: Remove inconsistent line breaks
a26ed094: protocol: indentation fixes
6a18a877: protocol: Extend wl_touch with touchpoint shape and orientation

and a few other, smaller ones.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Tested-by: Yong Bakos <ybakos@humanoriented.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>