Move source to src folder

src/main.cpp

@@ -0,0 +1,12 @@
+#include "mainwindow.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.setWindowIcon(QIcon(":/icons/icon.svg"));
+    w.show();
+    return a.exec();
+}