1ST DRI HOME RUN 40 ARTIST LOFTS, 26 APARTMENTS, PLANNED ON DIETZ Father-Son Development Team Will Brief City Council July 16 The Lofts on Dietz – a prospective four-story building containing 40 artist studios and 26 middle-income apartments – will be on Tuesday's Common Council agenda. The developers, a father-son team from the Hudson Valley, will brief Council members July 16. By JIM KEVLIN • Special to www.AllOTSEGO.com ONEONTA – Attention, Oneonta: The Lofts on Dietz are coming. Mayor Herzig…