Shinn Estate Vineyards in Mattituck is putting the final touches on its outdoor patio and new grill area.  The tasting patio is an extension right off of the entrance to the wine library, and is a great improvement to what used to host a few at tables and benches between two buildings. Now, they can accommodate many more with intimate seating, or groups who want to relax with a flight of Shinn Estate wines. The patio, which started construction a little over a month ago, transformed the tasting area, but what was not lost in the addition is the cozy…