Seattle artist Ernesto Ybarra unveiled “The Hostess,” a banner installation at the 9th & Thomas building, celebrating the city’s role in hosting the FIFA World Cup. SEATTLE — A new eight-story banner installation designed by Seattle artist Ernesto Ybarra now stretches across the east façade of the 9th & Thomas building in South Lake Union, bringing large-scale public art to the neighborhood ahead of a major summer of global soccer in the city. The installation, titled “The Hostess,” was commissioned by 9th & Thomas and unveiled at 234 Ninth Ave. N. The artwork spans 36 feet by 111 feet and…