Add Qt libs and headers

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

@@ -0,0 +1,54 @@
+// Copyright (C) 2020 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 QTRANSLATOR_H
+#define QTRANSLATOR_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qbytearray.h>
+
+QT_BEGIN_NAMESPACE
+
+
+#ifndef QT_NO_TRANSLATION
+
+class QLocale;
+class QTranslatorPrivate;
+
+class Q_CORE_EXPORT QTranslator : public QObject
+{
+    Q_OBJECT
+public:
+    explicit QTranslator(QObject *parent = nullptr);
+    ~QTranslator();
+
+    virtual QString translate(const char *context, const char *sourceText,
+                              const char *disambiguation = nullptr, int n = -1) const;
+
+    virtual bool isEmpty() const;
+
+    QString language() const;
+    QString filePath() const;
+
+    [[nodiscard]] bool load(const QString & filename,
+                            const QString & directory = QString(),
+                            const QString & search_delimiters = QString(),
+                            const QString & suffix = QString());
+    [[nodiscard]] bool load(const QLocale & locale,
+                            const QString & filename,
+                            const QString & prefix = QString(),
+                            const QString & directory = QString(),
+                            const QString & suffix = QString());
+    [[nodiscard]] bool load(const uchar *data, int len,
+                            const QString &directory = QString());
+
+private:
+    Q_DISABLE_COPY(QTranslator)
+    Q_DECLARE_PRIVATE(QTranslator)
+};
+
+#endif // QT_NO_TRANSLATION
+
+QT_END_NAMESPACE
+
+#endif // QTRANSLATOR_H