ACTOR Charlie Sheen and actress Denise Richards had decided to get a divorce, a spokesman for Sheen said. The announcement ended a highly publicised effort at reconciliation that became fodder for television talk shows and supermarket tabloids. Sheen spokesman Stan Rosenfield confirmed a report in People magazine yesterday that the couple were divorcing but declined to give any details. People said lawyers for both Sheen and Richards asked in a filing that the case be removed from Los Angeles County Superior Court and handed over to a private divorce arbiter to arrange the details. The magazine said that until the...