By JONATHAN TAKIFFPhiladelphia Daily NewsWanna get a famous front man agitated?Start by telling the Goo Goo Dolls' Johnny Rzeznik he's not just gonna be playing live for 100,000 or so of his fans on Sunday for the July 4 Wawa Welcome America! Festival. That there'll also be many a fan of the co-headlining Roots out on the Ben Franklin Parkway, who may not know any of the Dolls' 17 top 10 hits (tuneful rockers like "Iris," "Slide," "Here Is Gone" and "Big Machine.")Oh, and don't forget to share that Sunday's soiree will also be perused by a few hundred thousand more viewers watching on televisi