"The Liar" is Honestly Just So-So
Staging a farce is a little like whipping up a soufflé. You need good ingredients, a skillful cook and the ineffable airiness that turns ordinary egg custard into a fluffy delight. The Liar, which opened Thursday night at Classic Stage Company, has only two out of the three going for it.The ingredients are time-tested since the show is based on a comedy by the 17th century French playwright Pierre Corneille. Althoug…