add of menu ui, structures and declaration of Chracter class

mainwindow.h

@@ -1,6 +1,8 @@
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
+#include "character.h"
+
 #include <QMainWindow>
 
 QT_BEGIN_NAMESPACE
@@ -19,5 +21,9 @@ public:
 
 private:
     Ui::MainWindow *ui;
+
+    QString currentFile;
+    QList<Character*> characters;
+    Character* currentCharacter;
 };
 #endif // MAINWINDOW_H