Quick CoAP Multicast Discovery

// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QGuiApplication>
#include <QQmlApplicationEngine>
int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine;
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed,
                     &app, []() { QCoreApplication::exit(1); },
                     Qt::QueuedConnection);
    engine.loadFromModule("CoapClientModule", "Main");
    return app.exec();
}