XHTTP & WS & HU & gRPC servers: Require sockopt.trustedXForwardedFor (#6309)

https://github.com/XTLS/Xray-core/pull/6258#issuecomment-4663652131

Behavior: https://github.com/XTLS/Xray-core/pull/6258#issuecomment-4746598275

Replaces https://github.com/XTLS/Xray-core/pull/6159

transport/internet/websocket/ws_test.go

@@ -79,6 +79,9 @@ func TestDialWithRemoteAddr(t *testing.T) {
 		ProtocolSettings: &Config{
 			Path: "ws",
 		},
+		SocketSettings: &internet.SocketConfig{
+			TrustedXForwardedFor: []string{"X-Forwarded-For"},
+		},
 	}, func(conn stat.Connection) {
 		go func(c stat.Connection) {
 			defer c.Close()