gtk#767 add a way to change the application_id of a toplevel wayland GdkSurface

gtk#767 add a way to change the application_id of a toplevel wayland GdkSurface

so LibreOffice can reuse toplevels and get the right task icons

references;
 https://gitlab.gnome.org/GNOME/gtk/-/issues/767
 https://lists.freedesktop.org/archives/wayland-devel/2019-July/040704.html
 https://gitlab.freedesktop.org/wayland/wayland-protocols/commit/e0d6ad1d5e7e80321285a9b14ca3329289eb02e6
 https://bugs.documentfoundation.org/show_bug.cgi?id=125934
 https://bugzilla.redhat.com/show_bug.cgi?id=1334915
 https://bugreports.qt.io/browse/QTBUG-77182