UI/debugger changes

src/citra_qt/debugger/callstack.hxx

@@ -0,0 +1,19 @@
+#include <QDockWidget>
+#include "../ui_callstack.h"
+
+class QStandardItemModel;
+
+class CallstackWidget : public QDockWidget
+{
+    Q_OBJECT
+
+public:
+    CallstackWidget(QWidget* parent = 0);
+
+public slots:
+    void OnCPUStepped();
+
+private:
+    Ui::CallStack ui;
+    QStandardItemModel* callstack_model;
+};