RENTON, Wash. — The Seahawks added to their pass rush with their first pick of the second day of the NFL draft Friday, taking Minnesota defensive end Boye Mafe. Mafe was taken at pick No. 40, the first of two straight picks Seattle had in the second round. The Seahawks had Mafe in for a private visit before the draft and the 6-4, 255-pounder is projected as a good fit as an outside linebacker in the 3-4 defense that Seattle now wants to run under new defensive coordinator Clint Hurtt. “One of the most unique athletes in college football,” Lindy’s wrote of Mafe who ran a 4.53 40 at the combine …