Implement RetroAchivements

src/duckstation-qt/achievementlogindialog.h

@@ -0,0 +1,22 @@
+#pragma once
+#include "ui_achievementlogindialog.h"
+#include <QtWidgets/QDialog>
+
+class AchievementLoginDialog : public QDialog
+{
+  Q_OBJECT
+
+public:
+  AchievementLoginDialog(QWidget* parent);
+  ~AchievementLoginDialog();
+
+private Q_SLOTS:
+  void loginClicked();
+  void cancelClicked();
+
+private:
+  void connectUi();
+  void enableUI(bool enabled);
+
+  Ui::AchievementLoginDialog m_ui;
+};