Add sub for main project

iFacility/loginwindow.h

@@ -0,0 +1,21 @@
+#ifndef LOGINWINDOW_H
+#define LOGINWINDOW_H
+
+#include <QMainWindow>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class LoginWindow; }
+QT_END_NAMESPACE
+
+class LoginWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    LoginWindow(QWidget *parent = nullptr);
+    ~LoginWindow();
+
+private:
+    Ui::LoginWindow *ui;
+};
+#endif // LOGINWINDOW_H