Added SettingsHandler class.

data/settingshandler.h

@@ -0,0 +1,15 @@
+#ifndef SETTINGSHANDLER_H
+#define SETTINGSHANDLER_H
+
+#include <QVariantMap>
+
+class SettingsHandler {
+ public:
+  static QVariantMap getSettings(QString group = "");
+  static void saveSettings(QVariantMap settingMap, QString group = "");
+
+ private:
+  SettingsHandler();
+};
+
+#endif  // SETTINGSHANDLER_H