By Denny Dyroff, Staff Writer, The Times It’s time for some “fiddling around” this weekend. The Chester County Old Fiddlers’ Picnic (Hibernia County Park, off Route 340, Wagontown, 610-383-2812, http://dsf.chesco.org/ccparks) is scheduled for August 12. The annual Picnic is celebrating its 89th anniversary this year. Known originally as the “Chester and Delaware Counties’ Old Fiddlers’...