Reorganize files in pglablib

The enitities and containers of the catalog now go into catalog subfolder
Models go into model

pglablib/catalog/PgAm.h

@@ -0,0 +1,19 @@
+#ifndef PGAM_H
+#define PGAM_H
+
+#include "Pgsql_declare.h"
+#include <QString>
+
+class PgAm {
+public:
+	Oid oid;
+	QString name;
+
+	PgAm();
+
+	bool operator==(Oid rhs) const { return oid == rhs; }
+	bool operator<(Oid rhs) const { return oid < rhs; }
+	bool operator<(const PgAm &rhs) const { return oid < rhs.oid; }
+};
+
+#endif // PGAM_H