Method iterate

hdr/sqlite_modern_cpp.h:53–56

	template<typename Tuple, int Element = 0, bool Last = (std::tuple_size<Tuple>::value == Element)> struct tuple_iterate {
		static void iterate(Tuple& t, database_binder& db) {
			get_col_from_db(db, Element, std::get<Element>(t));
			tuple_iterate<Tuple, Element + 1>::iterate(t, db);
		}
	};

	template<typename Tuple, int Element> struct tuple_iterate<Tuple, Element, true> {