Implement CallBack in do_query_without_retrieve_rows

Callback with buffering 10 rows:
	CB =
	fun(D, Buf) ->
		case {D,length(Buf)} of
			{flush, _} ->
				%% all data retrieved
				io:format("~p~n~n", [Buf]);
			{_, 10}    ->
				%% 10 rows retrived
				io:format("~p~n~n", [Buf]),
				[D];
			_          ->
				[D|Buf]
		end
	end,

	{ok, Conn} = mysql_sync_conn:init( .... ),

	%% retrive data and process it with callback
	mysql_sync_conn:do_query_without_retrieve_rows(Conn, "SELECT * FROM
	big_table", CB)