When she joined Jane Clayson as a guest anchor on CBS' The Early Show the week of July 8, Deborah Norville acted as if it was a one-shot deal.But Wednesday, after New York Post columnist Cindy Adams wrote that CBS plans to boot Clayson and install Norville — which Norville said is news to her — the former NBC Today anchor said she would love to return to the morning-show fray."It's really intriguing," said Norville, who has anchored syndicated Inside Edition for the past six years. "I thoroughly enjoyed myself."Norville is committed to Edition for the next three years, so...