DolphinQt: Move Free Look out of Graphics/Hotkey and into its own configuration window. Launched from a new menu option - "Free Look Settings". The HotKeyScheduler still calls the Free Look functionality to reduce the total number of threads

Source/Core/DolphinQt/Config/FreeLookWindow.h

@@ -0,0 +1,21 @@
+// Copyright 2020 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QDialog>
+
+class QDialogButtonBox;
+
+class FreeLookWindow final : public QDialog
+{
+  Q_OBJECT
+public:
+  explicit FreeLookWindow(QWidget* parent);
+
+private:
+  void CreateMainLayout();
+
+  QDialogButtonBox* m_button_box;
+};