A stray kitten named Alfonso won a cat casting call on Monday, pouncing on a role in the upcoming Broadway revival of “You Can’t Take it With You.”  Director Scott Ellis picked Alfonso out of 14 auditioning kittens, all rescues provided by the Humane Society.  Alfonso’s role calls for him to sit on a desk and eat as actress Kristine Nielsen pounds away on a typewriter.  During the auditions at the New 42nd Street Studios — which were also attended by co-star Rose Byrne — the kitties were placed, one by one, on top of the stage desk.