An ambitious attempt at Lanford Wilson’s difficult play. By: Gabriel Gomez, Copy Editor   During the third week of November, in the dreadfully compact Emerson Theater on Lankershim Boulevard – a room no larger than 950 square feet, composed of a simple stage set and three steep rows of 12 audience seats, which the gentleman sitting next to me described as “so intimate” – Valley’s theatre department gave an interesting performance of Lanford Wilson’s “The Rimers of Elderitch.”