registry: add test for RegistryServer and registryClient,
testRegistryServer mainly test methods concerned to http rpc request. Other methods that call request_dump like
getBootStrpPeer is not include.
testRegistryClient test the rpc call with or not with "cn" parameter.

cli.conf: test each situation call the cli conf.

tunnel: add test for BaseTunnelManager, MultGatewayManager

tools is a util cotain method to make cert and ket files