By Cynthia Ross In celebration of its 130th year and in recognition of its actual function, the T.W. Wood Gallery on Barre Street in Montpelier now includes the designation of museum in its name, which has been updated to T.W Wood Gallery, A Museum of American Art. According to its executive director, Sabrina Fadial, the T.W. Wood Gallery fits the museum criteria because it holds two permanent collections; has several galleries, including two that show contemporary work; and educational programming — lectures, workshops, classes, and special events. And, she said, as a museum, it carries greater weight as a cultural