init commit, add filemonitor and controller, add basic mainwindow

src/View/MainWidget/MainWidget.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <QLayout>
+#include <QWidget>
+#include <qboxlayout.h>
+#include <qtmetamacros.h>
+
+class MainWidget : public QWidget {
+  Q_OBJECT
+public:
+  MainWidget() = default;
+  ~MainWidget() = default;
+
+private:
+};