implement executeAndFetchLazy for large result sets and improved performance of executeAndFetchFirst
implement executeAndFetchLazy for large result sets and improved performance of executeAndFetchFirst

aaberg/sql2o,xaled/sql2o,mugizico/sql2o,indvd00m/sql2o,dheerajarora/sql2o,minecrafter/sql2o,trfiladelfo/sql2o