Peek preview of custom configurators

ConfiguratorsSneakPeek.txt

public class CustomServerEndpointConfigurator extends ServerEndpointConfig.Configurator {
  //.. details ommitted
}
ServerEndpointConfig sec = ServerEndpointConfig.Builder.create(ChatEndpoint.class, "/letschat")
                          .configurator(serverEndpointConfigurator)
                          .build();
                        
public class CustomClientEndpointConfigurator extends ClientEndpointConfig.Configurator {
  //.. details ommitted
}
ClientEndpointConfig config = ClientEndpointConfig.Builder.create()
                              .configurator(clientEndpointConfigurator)
                              .build();