Improvements to the CrudModel

The new data of modified rows is now stored directly within the row_mapping
also changed how new rows are handled so the new empty row for inserting
is not a special case but is part of the list.

pglab/CrudTab.h

@@ -1,45 +0,0 @@
-#ifndef CRUDTAB_H
-#define CRUDTAB_H
-
-#include <QSortFilterProxyModel>
-#include "catalog/PgClass.h"
-#include "IDatabaseWindow.h"
-#include <QWidget>
-#include <memory>
-#include <optional>
-
-namespace Ui {
-	class CrudTab;
-}
-
-class OpenDatabase;
-class CrudModel;
-
-class CrudTab : public QWidget {
-	Q_OBJECT
-public:
-	explicit CrudTab(IDatabaseWindow *context, QWidget *parent = nullptr);
-	~CrudTab() override;
-
-	void setConfig(Oid oid);
-public slots:
-	void refresh();
-private:
-	Ui::CrudTab *ui;
-	IDatabaseWindow *m_context;
-
-	std::shared_ptr<OpenDatabase> m_db;
-	std::optional<PgClass> m_table;
-
-	CrudModel *m_crudModel = nullptr;
-    QSortFilterProxyModel *m_SortFilterProxy = nullptr;
-
-	void initActions();
-
-private slots:
-	void on_actionRemove_rows_triggered();
-	void headerCustomContextMenu(const QPoint &pos);
-};
-
-
-#endif // CRUDTAB_H