Qt/PropertiesDialog: Implement "Patches" tab

Source/Core/DolphinQt2/Config/NewPatchDialog.h

@@ -0,0 +1,45 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vector>
+
+#include <QDialog>
+#include <QWidget>
+
+#include "Core/PatchEngine.h"
+#include "DolphinQt2/GameList/GameFile.h"
+
+class QDialogButtonBox;
+class QGroupBox;
+class QLineEdit;
+class QVBoxLayout;
+class QPushButton;
+
+class NewPatchDialog : public QDialog
+{
+public:
+  explicit NewPatchDialog(PatchEngine::Patch& patch);
+
+private:
+  void CreateWidgets();
+  void ConnectWidgets();
+  void AddEntry();
+
+  void accept() override;
+
+  QGroupBox* CreateEntry(int index);
+
+  QLineEdit* m_name_edit;
+  QWidget* m_entry_widget;
+  QVBoxLayout* m_entry_layout;
+  QPushButton* m_add_button;
+  QDialogButtonBox* m_button_box;
+
+  std::vector<QLineEdit*> m_edits;
+
+  PatchEngine::Patch& m_patch;
+  int m_id = 0;
+};