As a composer, Antonio Vivaldi rather owns spring through the popular co-opting of his violin concerto “La primavera.” So it is appropriate that the Choral Society of the Hamptons welcomes spring with “Viva Vivaldi!” — opting not to offer a cliched response to the arrival of the equinox, but to give a varied program of joyous music by the composer and others to awaken senses dulled and dormant from the long winter.