[Libvirt-cim] [PATCH 0 of 4] #2 Add reference validation to VSMigrationService and VSMigrateCap.

[Kaitlin Rupert]

More reference validation updates.

This patch set is dependent on the get_vsm_cap() reference validation set.

See commit logs for updates from set 1 to set 2:  
   -Add reference validation to get_migration_service()
   - Add support for ref checking to VSMigrationCapabilities