Displaying status messages from the core. Using non-smart pointer for GenericCore to connect to its signal.

mainwindow.h

@@ -19,12 +19,15 @@ class MainWindow : public QMainWindow {
   MainWindow(QWidget* parent = nullptr);
   ~MainWindow();
 
+ signals:
+  void displayStatusMessage(QString message);
  private slots:
   void on_pushButton_clicked();
 
+  void showStatusMessage(const QString text);
  private:
   Ui::MainWindow* ui;
 
-  std::shared_ptr<GenericCore> m_core;
+  GenericCore* m_core;
 };
 #endif  // MAINWINDOW_H