LOS ANGELES — Norman Lear, the writer, director and producer who revolutionized prime time television with “All in the Family,” “The Jeffersons” and “Maude,” propelling political and social turmoil into the once-insulated world of TV sitcoms, has died. “All in the Family” was immersed in the headlines of the day, while also drawing upon Lear’s childhood memories of his tempestuous …