add socks

pkg/connector/socks/v5/metadata.go

@@ -0,0 +1,18 @@
+package v5
+
+import (
+	"net/url"
+	"time"
+)
+
+const (
+	connectTimeout = "timeout"
+	auth           = "auth"
+	disable4a      = "disable4a"
+)
+
+type metadata struct {
+	connectTimeout time.Duration
+	User           *url.Userinfo
+	disable4a      bool
+}