Qt/TAS: Implement turbo mode

Source/Core/DolphinQt/TAS/TASCheckBox.h

@@ -0,0 +1,24 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QCheckBox>
+
+class QMouseEvent;
+
+class TASCheckBox : public QCheckBox
+{
+  Q_OBJECT
+public:
+  explicit TASCheckBox(const QString& text);
+
+  bool GetValue();
+
+protected:
+  void mousePressEvent(QMouseEvent* event) override;
+
+private:
+  bool m_trigger_on_odd;
+};