Add another udp client test

SquiLu/samples/test-socket-udp-client.nut

@@ -0,0 +1,15 @@
+local host = "*";
+local port = vargv.len() > 1 ? vargv[1] : 20007;
+local udp = socket.udp();
+udp.setsockname(host, port);
+udp.settimeout(-1);
+print("Using remote host '" + host + "' and port " + port + "...");
+while (true){
+	//local line = stdin.read(4);
+	//if(!line || line == "") os.exit();
+	//local line = "dad udp !";
+	//udp.send(line);
+	local dgram = udp.receive();
+	print(dgram.len(), dgram);
+	//socket.sleep(0.01);
+}