Add 'shared' property to OpenstackNetwork

cloudbridge/providers/openstack/resources.py

@@ -827,6 +827,10 @@ class OpenStackNetwork(BaseNetwork):
     def external(self):
         return self._network.get('router:external', False)
 
+    @property
+    def shared(self):
+        return self._network.get('shared', False)
+
     @property
     def state(self):
         self.refresh()