The stage will be almost bare. The actors will assume their places behind music stands and read from dog-eared scripts. The four plays to be featured at the Colorado New Play Summit tomorrow and Saturday aren't ready for prime time. But this preview gives the authors the chance to polish their work, and the Denver Center Theatre Company the chance to nurture contemporary playwrights. Bruce Sevy is director of new play development at the theater company. He speaks with Dan Meyers.