CAPITAL REGION, N.Y. — In terms of theater, the next couple of weeks might be the busiest of the year. Between now and June 30, 10 shows open. Three open this week. Tonight, Curtain Call Theatre in Latham opens the family drama-comedy “Pictures From Home.” Friday Harbinger Theater starts a two-weekend run of the lighthearted “Ladies Day,” and as a significant change of pace, Fort Salem Theatre will offer “The Laramie Project” starting Friday. “P…