Add UI for DIDKIT.

DIDKit/App/MenuAction/OpenFileAction.h

@@ -0,0 +1,18 @@
+#ifndef OPENFILEACTION_H
+#define OPENFILEACTION_H
+
+#include <QAction>
+
+class OpenFileAction : public QAction
+{
+    Q_OBJECT
+public:
+    OpenFileAction(const QString& aName, QWidget* aParent = nullptr);
+    ~OpenFileAction() override;
+signals:
+    void dataLoaded(bool loadSuccess);
+private:
+    void executeAction();
+};
+
+#endif // OPENFILEACTION_H