client: ensure delegate_dispatch! forwards event_created_child to delegates
client: ensure delegate_dispatch! forwards event_created_child to delegates

vberger/wayland-client-rs,vberger/wayland-client-rs,vberger/wayland-client-rs,Smithay/wayland-rs,vberger/wayland-rs,vberger/wayland-rs,Smithay/wayland-rs