settings, arm_dynarmic, yuzu qt: Move CPU debugging option

Decouples the CPU debugging mode from the enumeration to its own
boolean. After this, it moves the CPU Debugging tab over to a sub tab
underneath the Debug tab in the configuration UI.

src/yuzu/configuration/configure_debug_tab.h

@@ -0,0 +1,32 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <QWidget>
+
+namespace Ui {
+class ConfigureDebugTab;
+}
+
+class ConfigureDebugTab : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit ConfigureDebugTab(QWidget* parent = nullptr);
+    ~ConfigureDebugTab() override;
+
+    void ApplyConfiguration();
+
+    void SetCurrentIndex(int index);
+
+private:
+    void changeEvent(QEvent* event) override;
+    void RetranslateUI();
+
+    void SetConfiguration();
+
+    std::unique_ptr<Ui::ConfigureDebugTab> ui;
+};