By Denny Dyroff, Entertainment Editor, The Times The Yardbirds Any credible list of the 10 all-time best rock guitarists should – without question – include Jimi Hendrix, Eric Clapton, Jeff Beck and Jimmy Page. Amazingly, three of them got their starts in the same band – the Yardbirds The Yardbirds, who are playing Sellersville Theatre (24 West Temple Avenue, Sellersville, 215-257-5808, www.st94.com)...