This patch refactors the sample files of server_group notifications to
use a common ServerGroupPayload sample data.
Change-Id: I4e7531c180484a7b430d267153d185f1006543f0
Transform server group delete notification to the versioned
notification framework.
Co-Authored-By: Gábor Antal <antal@inf.u-szeged.hu>
Change-Id: I03890877118a283f9cc22eec2c7456bd2016a6ba
Implements: bp versioned-notification-transformation-queens