[Libvirt-cim] [PATCH 0 of 2] MigrationIndications

These two patches together are dependent on some libcmpiutil changes I'll be sending out shortly; one for dup_instance, and another for raise functionality. The four patches together give us Migration Indications. Any time VSMigrationService is used to trigger a migration, the appropriate indications will be fired. The big caveat for these patches is that migration is still a bit flaky on my system, so while I have tested that the "started" and "failed" indications work I haven't had a chance to see "succeeded" fire. I have no reason to believe it won't, because of the way the raising happens, but it would be good to confirm.