Implement virDomain{Get,Set}Time APIs

While the setter can be generated automatically, the getter is not.
However, it would be a lot easier if they both share the same logic:
a python dictionary to represent the time: dict['seconds'] to
represent seconds, and dict['nseconds'] to represent nanoseconds.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

libvirt-override-virDomain.py

@@ -59,3 +59,16 @@
         ret = libvirtmod.virDomainFSThaw(self._o, mountpoints, flags)
         if ret == -1: raise libvirtError ('virDomainFSThaw() failed', dom=self)
         return ret
+
+    def getTime(self, flags=0):
+        """Extract information about guest time """
+        ret = libvirtmod.virDomainGetTime(self._o, flags)
+        if ret == -1: raise libvirtError ('virDomainGetTime() failed', dom=self)
+        return ret
+
+    def setTime(self, time=None, flags=0):
+        """Set guest time to the given value. @time is a dict conatining
+        'seconds' field for seconds and 'nseconds' field for nanosecons """
+        ret = libvirtmod.virDomainSetTime(self._o, time, flags)
+        if ret == -1: raise libvirtError ('virDomainSetTime() failed', dom=self)
+        return ret