[RFC PATCH wayland-protocols] presentation: New protocol for presenting surfaces to the user

[David Edmundson]

> +      <arg name="id" type="new_id" interface="zwp_presenter"/>
> +      <arg name="surface" type="object" interface="wl_surface"/>
> +      <arg name="serial" type="uint" summary="the serial from the input event"/>
> +    </request>
> +

Passing a serial also needs a wl_seat object to relate the two