add send_request() which is missing..

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/fork@1537 b32b6428-25c9-4566-ad07-03861ab6144f

lib/xaal/lib/core.py

@@ -93,6 +93,10 @@ class Engine(object):
     def send_msg(self, msg):
         self.network.send(msg)
 
+    def send_request(self,dev,targets,action,body = None):
+        msg = self.msg_factory.build_msg(dev, targets, 'request', action, body)
+        self.queue_tx(msg)
+
     def send_reply(self, dev, targets, action, body=None):
         msg = self.msg_factory.build_msg(dev, targets, 'reply', action, body)
         self.queue_tx(msg)