Organizers for Buffalo's annual 'Music is Art' festival expect its thirteenth installation to have the largest crowd yet. That's because for the first time in more than a decade, its founder Robbie Takac's band is playing a free show in Western New York. Maybe you've heard of them, they're called the Goo Goo Dolls. Time Warner Cable News reporter Ryan Whalen has more.BUFFALO N.Y. — It's hard to say how many people packed into Niagara Square on July 4, 2004 as the Goo Goo Dolls played a free concert in front of City Hall. The band estimates it was somewhere between 10,000 to 15,000."It was pret