add function queryLazy

we add this function, because <cfquery lazy="true"> does not work with MySQL because of the limitation of the MySQL JDBC implementation.
cfquery produces a query object that can be used more than once and MySQL only supports streaming with the "forward_only_cursor", what is incompatible with the query object.

the function queryLazy will need a function passed in as an argument, that then will be called by QueryLazy to pass the records. So the function will not create a query as result.