“I promised we had a big surprise for you today,” said Westfield Mayor Shelley Brindle to the camera, shielding the hit-making rock star sitting on the stoop behind her.It was John Rzeznik, famed Goo Goo Dolls frontman and Westfield resident, who played a 15-minute Facebook Live “porch performance” Friday to raise money for the Union County town’s new We Love Local fundraiser. Money earned by the fundraiser will support independently owned Westfield businesses impacted by this coronavirus outbreak, which has forced thousands of restaurants, bars, salons and gyms to close or reduce staffing acr