(ANNANDALE-on-HUDSON, N.Y.) – The Bard SummerScape festival kicks off on Saturday, July 6 at 8pm, with A Rite, a major new dance-theater piece by the Bill T. Jones/Arnie Zane Dance Company and SITI Company. Co-commissioned by SummerScape and created by Bill T. Jones and Anne Bogart, two titans of American performing arts, A Rite commemorates…