simplify config directory

proxy/dokodemo/config.go

@@ -0,0 +1,11 @@
+package dokodemo
+
+import (
+	v2net "github.com/v2ray/v2ray-core/common/net"
+)
+
+type Config interface {
+	Address() v2net.Address
+	Network() v2net.NetworkList
+	Timeout() int
+}