Planning for the Hebrew Congregation’s 19th annual Antiques, Art and Collectibles Auction is in high gear. The synagogue’s auction is always a highlight of the St. Thomas-St. John social calendar, attracting hundreds of auction-goers from all three islands plus visitors from off-island. It’s a happening — with food, mimosas, meeting and mingling, and a chance to snag bargains. Doors open at 10 a.m. for the “flea market” sale tables and the start of bidding on hundreds of silent auction