Add selector outbound

adapter/router.go

@@ -16,6 +16,7 @@ import (
 type Router interface {
 	Service
 
+	Outbounds() []Outbound
 	Outbound(tag string) (Outbound, bool)
 	DefaultOutbound(network string) Outbound
 

adapter/service.go

@@ -1,6 +1,12 @@
 package adapter
 
-type Service interface {
+import "io"
+
+type Starter interface {
 	Start() error
-	Close() error
+}
+
+type Service interface {
+	Starter
+	io.Closer
 }