Add MataAvistas project (BudgetPro) as regular files

MataAvistas/BudgetPro/gui/SARibbon/example/StaticExample/MainWindow.h

@@ -0,0 +1,15 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include "SARibbon.h"
+
+class MainWindow : public SARibbonMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget* parent = nullptr);
+    ~MainWindow();
+};
+#endif  // MAINWINDOW_H