Call it the big reveal. The lobby will feature an immersive yarn installation by Japanese artist Chiharu Shiota; the bank will house a large-scale installation of lasers and mist, “Particulates,” by Rita McBride; and Sanford Biggers’ 25-foot-tall cast bronze sculpture “Oracle” will stand on the terrace on the corner of Wilshire and Glendon Avenue. The exhibition “Together in Time: Selections …