Never heard of the St. Pepin grape? I hadn't either until James Bateman, owner, vineyard manager and winemaker at Windham Vineyards in Windham, NY sent me a couple of his wines — including this Windham Vineyards 2008 Estate Select St. Pepin ($15). Windham is perhaps best known as a skiing town and not surprisingly Bateman, an Englishman, presides over the highest elevation vineyards in the east — at 2000 and 2200 feet above sea level. As you can probably guess, it gets cold up there in his vineyards, which is why he is growing varieties like St. Pepin, which is…