By Donavan Hall, Beer Columnist A firkin of Oakham Bishops Farewell has just arrived in the US.  This particular firkin is reserved for thirsty Long Island beer enthusiasts. It will be tapped at Deks in Rocky Point on Friday, February 8. For the last few months Deks has played host to a series of cask nights instigated by the nascent Long Island Malt and Beer Enthusiasts, an organization devoted to the promotion of craft beer culture on Long Island.  I was very happy to see Lenn at the last cask night. (That cask night is also the subject of the…