core: isLiveSnapshotApplicable - VM in Paused status

CreateAllSnapshotsFromVmCommand -> endVmCommand:
Live snapshot is being performed only when 'isLiveSnapshotApplicable'.
Since live snapshot is applicable for VM in Paused status as well,
adjusting 'isLiveSnapshotApplicable' method accordingly.

Change-Id: I54aaa537fe074944cbc9d547f3a6800fa2f87e35
Bug-Url: https://bugzilla.redhat.com/987783
Signed-off-by: Daniel Erez <derez@redhat.com>