By Denny Dyroff, Entertainment Editor, The Times Power Play Rink Based on what we’ve seen from the area weather so far, skating on frozen ponds around Chester County will only happen in dreams. Fortunately, there are quite a few very good indoor locations for ice skating in the area. One of the best local skating sites is Power Play Rinks (701 Haywood Drive, Exton, 610-458-9160, www.powerplayrinks.com)....