Reorganize source and add libraries

main.cpp

@@ -1,16 +0,0 @@
-#include "mainwindow.h"
-#include <QApplication>
-
-int main(int argc, char *argv[])
-{
-    // MacOS directive to prevent the menu bar from being merged into the native bar
-    // i.e. it's in the window, and not the top left of the screen
-    QCoreApplication::setAttribute(Qt::AA_DontUseNativeMenuBar);
-
-    QApplication a(argc, argv);
-    MainWindow w;
-    w.show();
-
-    return a.exec();
-
-}