feat: add ssh outbound (#1087)

* feat: add ssh outbound

* fix: Modify the way to get dstAddr

---------

Co-authored-by: trevid <trevidmy@gmail.com>

constant/adapters.go

@@ -41,6 +41,7 @@ const (
 	Hysteria2
 	WireGuard
 	Tuic
+	Ssh
 )
 
 const (
@@ -222,7 +223,8 @@ func (at AdapterType) String() string {
 		return "URLTest"
 	case LoadBalance:
 		return "LoadBalance"
-
+	case Ssh:
+		return "Ssh"
 	default:
 		return "Unknown"
 	}