Bruce Jay Friedman's brand of Jewish humor lies somewhere between Woody Allen's dark, paranoid musings and Henny Youngman's quick-fire one-liners. The author, screenwriter and playwright worked steadily through the 1970s and 80s, though his output has slowed with the 90s.Starting his career as an editor and magazine and short story writer, Friedman began writing novels in the early 1960s and plays later in the decade. His most successful were "Scuba Duba" (1967) and the dark comedy/drama "Steambath" (1970), which was shown on public television in 1973. He turned to the screen in 1971 with "The