[enhance] Dynamically shutdown service in specific register

[cvictory]

The developer can shutdown the service gracefully, refer to
http://dubbo.apache.org/en-us/docs/user/demos/graceful-shutdown.html .

My requirement is to shutdown the service but not to stop application. My application have two registration, I want to shutdown service in specific registration dynamically.
For example the app-A have two registrations including nacos and zookeeper, and I want to shutdown the service registered in nacos and keep service in zookeeper register.