''The works of Plautus,'' writes Palmer Bovie, ''mark the real beginning of Roman literature.'' In these lively new translations, which effectively communicate the vitality and verve of the originals, the plays of Plautus are accessible to a new generation.Plays and translators: Volume 1: Amphitryon, Constance Carrier . Miles Gloriosus, Erich Segal . Captivi, Richard Moore . Casina, Richard Beacham . Curculio, Henry Taylor Volume 2: Rudens, Constance Carrier . Aulularia, Palmer Bovie . Bacchides, James Tatum . Mercator, George Garrett . Truculentus, James Tatum