Hi-def Met Opera back at Foothills By Patrick Dewey Opera fans can wait out the long winter before next summer’s Glimmerglass Festival and head to the Foothills Performing Arts Center at 24 Market Street in Oneonta for high-definition streams of productions from New York City’s Metropolitan Opera. This year’s premier performance comes at 1 p.m. on Saturday, December 11, with a production of Matthew Aucoin’s “Eurydice.” The opera is a modern take on the Greek legend of Orpheus, who uses…