By Sasha Smith, New York City Correspondent You know how it is when you go to the wedding of a not-very-close friend and you’re seated at the table with all the other not-very-close friends, like the guy who worked at the groom’s ill-fated online start up for 6 months circa 1999, and the bride’s friend from her semester abroad in Buenos Aires?   Well, that was kind of like this week’s class, a motley crew of wines from a random assortment of countries that most US wine drinkers know little about. Technically it was “wines of Central and Southern Europe,”…