It seems that membership clubs are here to stay, and this one thinks they’re the most exclusive. At San Vicente, it’s all about who you know.  Gatekeeping has taken over New York City by way of private clubs. It’s not like this city hasn’t always had an air of exclusivity, but the recent uptick in private spaces makes it undeniable that there’s been a resurgence of secrecy. With celebrities constantly berated in the media, it looks like hotelier Jeff Klein…