Add naive inbound and test

inbound/naive_quic_stub.go

@@ -0,0 +1,9 @@
+//go:build !with_quic
+
+package inbound
+
+import E "github.com/sagernet/sing/common/exceptions"
+
+func (n *Naive) configureHTTP3Listener(listenAddr string) error {
+	return E.New("QUIC is not included in this build, rebuild with -tags with_quic")
+}