env_build.py contains a quick test code for create virtual network in a remote host.

 usage:
    
   python env_build.py --rpc_server 192.168.188.10 --config /etc/vstf/env/Tn.json

   --rpc_server RPC_SERVER
                        the rabbitmq server for deliver messages.
   --config CONFIG
  						env-build config file to parse

the above command will build a 'Tn-type' network according to config file: /etc/vstf/env/Tn.json.