Glenn Close’s 2019 Oscars dress weighed 42 pounds — 4 million tiny glass beads, hand-sewn on sheaths of golden fabric formed into a shimmering caftan — the vestment of a Hollywood high priestess.As she circulated on the red carpet, Close resembled an Oscar statuette: part mascot, part majesty. Everyone believed she was about to win the Best Actress award for her portrayal of Joan Castleman in “The …