McCarter's busy benefactor BY PETER FILICHIA
First, the busy Broadway producer confers with choreographer Kathleen Marshall to discuss the casting of his November production of "Wonderful Town." Then he checks on "Bounce," the new Stephen Sondheim musical about to open in Washington, D.C., which he just might import to Broadway.<br /> And finally Roger Berlind will make a call to see how opening night events for the new Roger S. Berlind Theatre in Princeton are…