By Denny Dyroff, Staff Writer, The Times Paula Boggs Paula Boggs, who will bring the Paula Boggs Band to the area on August 16 for a show at the World Café Live (3025 Walnut Street, Philadelphia, 215-222-1400, www.worldcafelive.com), is an artist who smashes stereotypes. Here are some of them. Bluegrass bands come from the South – Boggs and her band are based in Seattle, Washington. Bluegrass bands...