added uuid to getallvms sample.

sample/getallvms.py

@@ -60,6 +60,9 @@ def PrintVmInfo(vm, depth=1):
    print "Name           : ", summary.config.name
    print "Path           : ", summary.config.vmPathName
    print "Guest          : ", summary.config.guestFullName
+   print "Instance UUID  : ", vm.summary.config.instanceUuid
+   print "BIOS UUID      : ", vm.summary.config.uuid
+
    annotation = summary.config.annotation
    if annotation != None and annotation != "":
       print "Annotation     : ", annotation