shell: Advertise application_id event for other surface roles

shell: Advertise application_id event for other surface roles

application_id event is sent just when a client binds to the
agl_desktop_shell interface and when new desktop role surface were
created, skipping split, fullscreen and pop-up kind of surface. This
patch sends the application_id event for those as well.

Makes SPEC-3412 much easier to determine when the application itself was
started.

Bug-AGL: SPEC-3412

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ic5c0ebf130fda45c5fda89e0e27e81dea96195cd