NEW YORK — Once the clock struck midnight on the East Coast and the calendar read July 11, NBA free agents were free to sign their deals and offer sheets. By the end of today, there will be a resolution to the Dwight Howard saga. “It’s all coming to a head (today),” a source close to the trade talks told SheridanHoops.com editor-in-chief Chris Sheridan. For everyone involved—the fans, press, players, agents, and owners—the past 11 days have been pretty exhausting. In all,