RICHMOND (AP).- The April 1 auction of more than 5,000 Titanic artifacts a century after the luxury liner’s sinking has stirred hundreds of interested calls, with some offering to add to the dazzling trove already plucked from the ocean floor. Auctioneer Arlan Ettinger said his New York auction house, Guernsey’s Auctioneers & Brokers, has heard from some descendants of the more than 700 survivors, including one offer he describes as morbid: papers found on the floating body of a passenger after the sinking. “Their relative was found floating and, when the body was recovered, papers were removed — passports and other documents,” he said. “That has stayed in the family’s hands and they offered it to us.” The papers will not be included, but something much more poignant will be: a children’s bracelet with the name Amy spelled out in diamonds. Only two Amys