Reorganize files in pglablib

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

pglablib/catalog/PgProcContainer.h

@@ -0,0 +1,26 @@
+#ifndef PGPROCCONTAINER_H
+#define PGPROCCONTAINER_H
+
+#include "PgContainer.h"
+#include "PgProc.h"
+#include <vector>
+
+namespace Pgsql {
+
+	class Result;
+
+}
+
+class PgProcContainer: public PgContainer<PgProc> {
+public:
+	using PgContainer<PgProc>::PgContainer;
+
+	virtual std::string getLoadQuery() const override;
+
+	//std::vector<PgProc> getTriggersForRelation(Oid cls) const;
+protected:
+	PgProc loadElem(const Pgsql::Row &row) override;
+private:
+};
+
+#endif // PGPROCCONTAINER_H