Brand New is looking backwards. Starting in late September, Jesse Lacey’s beloved emo outfit will celebrate the 20th anniversary of their seminal 2006 album “The Devil and God Are Raging Inside Me” at arenas, ballrooms, pavilions, theaters and auditoriums all over North America. That includes a stop at Brooklyn’s Barclays Center on Monday, Oct. 12. In the off-chance you haven’t listened to “The Devil and God Are Raging Inside Me” in the past decade, the impassioned, fist-pumping record is known