CheatManager/ISOProperties: Refactor ActionReplay tabs as a class

Refactor Action Replay code into its own class like Gecko Codes.

Source/Core/DolphinWX/Cheats/ARCodeAddEdit.h

@@ -0,0 +1,29 @@
+// Copyright 2008 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <wx/dialog.h>
+
+#include "Core/ActionReplay.h"
+
+class wxTextCtrl;
+
+class ARCodeAddEdit final : public wxDialog
+{
+public:
+  ARCodeAddEdit(ActionReplay::ARCode code, wxWindow* parent, wxWindowID id = wxID_ANY,
+                const wxString& title = _("Edit ActionReplay Code"),
+                const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
+                long style = wxDEFAULT_DIALOG_STYLE);
+
+  const ActionReplay::ARCode& GetCode() const { return m_code; }
+private:
+  void CreateGUI();
+  void SaveCheatData(wxCommandEvent& event);
+
+  ActionReplay::ARCode m_code;
+  wxTextCtrl* m_txt_cheat_name;
+  wxTextCtrl* m_cheat_codes;
+};