After starting the season in Triple-A, DJ Stewart never thought he would hear Citi Field fans chanting his name. But a pair of homers, a difficult catch and a walk-off RBI had the Queens faithful doing exactly that in the Mets’ win over the Texas Rangers on Wednesday night. The Mets blew an early three-run lead and went down 5-3 before Stewart belted his second home run of the game to tie it up at 5-5 in the bottom of the eighth inning off right-hander Jose Leclerc.