As Charles P. Kocoras sat in the waiting area at the U.S. attorney’s office in 1970 awaiting a follow-up job interview, he recognized a familiar face sitting across from him: Dan K. Webb. “He spotted me, and I spotted him,” Kocoras said. “We both knew why we were there.” Both men were offered, and accepted, positions. That began a 40-year professional link that culminated in the publishing of “May It Please the Court,” Kocoras’ biography of Webb, the chairman of …