TAYLOR'S FIRST "LOOK"   Taylor Swift’s “Look What You Made Me Do” (Big Machine) had an explosive first day in the marketplace, earning huge streams and setting the stage for a first week in the range of 550-550k in sales alone, an impressive feat in the streaming era. Could the track surpass this projection?   Tay-Tay’s biggest first week with a single was in 2012, when “We Are Never Ever Getting Back Together” scored 623k downloads. The lead single from 1989, “Shake I