By GREGORY ZELLER // Long Island can claim bragging rights to New York State’s 2017 Winery of the Year. At least, half of them. Southold’s Sparkling Pointe Vineyards has earned highest marks in the 2017 New York Wine & Food Classic, sharing the Winery of the Year crown with CK Cellars/Torrey Ridge Winery of the Finger Lakes region. The New York Wine & Food Classic, marking its 32nd year, is a nationally recognized competition that…