changqing

> Please add unit tests and add new config into the default conf file with description to make the feature discoverable. > > I think this might be useful for...

Should create tenant `public` and namespace `default`, and the number of namespace bundles should be 1.

Should connect proxyPort `5682`.

> **Test setp** - Use rabbitmq client create exchange, queue and then bind. - Send and receive some message. - Restart amqp broker. - Use rabbitmq client connect broker to...

Please take a look. @gaoran10 @mingyifei

> availablePermits are processed at the time of consumption. CreditManager done not work. You can try it. When consumer client send nack command, broker will resend message and decrease `availablePermits`,...

#37