got rid of 'src' folders in each sub-project

src/citra_qt/callstack.hxx

@@ -0,0 +1,20 @@
+#include <QDockWidget>
+#include "ui_callstack.h"
+#include "platform.h"
+
+class QStandardItemModel;
+
+class GCallstackView : public QDockWidget
+{
+    Q_OBJECT
+
+public:
+    GCallstackView(QWidget* parent = 0);
+
+public slots:
+    void OnCPUStepped();
+
+private:
+    Ui::CallStack ui;
+    QStandardItemModel* callstack_model;
+};