Add Qt libs and headers

paho-mqtt3as-proxy/Qt/include/QtCore/qsignalmapper.h

@@ -0,0 +1,46 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QSIGNALMAPPER_H
+#define QSIGNALMAPPER_H
+
+#include <QtCore/qobject.h>
+
+QT_BEGIN_NAMESPACE
+
+class QSignalMapperPrivate;
+
+class Q_CORE_EXPORT QSignalMapper : public QObject
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QSignalMapper)
+public:
+    explicit QSignalMapper(QObject *parent = nullptr);
+    ~QSignalMapper();
+
+    void setMapping(QObject *sender, int id);
+    void setMapping(QObject *sender, const QString &text);
+    void setMapping(QObject *sender, QObject *object);
+    void removeMappings(QObject *sender);
+
+    QObject *mapping(int id) const;
+    QObject *mapping(const QString &text) const;
+    QObject *mapping(QObject *object) const;
+
+Q_SIGNALS:
+    void mappedInt(int);
+    void mappedString(const QString &);
+    void mappedObject(QObject *);
+
+public Q_SLOTS:
+    void map();
+    void map(QObject *sender);
+
+private:
+    Q_DISABLE_COPY(QSignalMapper)
+    Q_PRIVATE_SLOT(d_func(), void _q_senderDestroyed())
+};
+
+QT_END_NAMESPACE
+
+#endif // QSIGNALMAPPER_H