Birmingham Royal Ballet: Wink, Arcadia, The Moor's Pavane, Everyman Theatre, Cheltenham (Saturday 6 May).   BRB's South tour opened in Cheltenham last Friday and as I had never seen the company and was staying in Cirencester, my sister and I took her daughters (12 and 10, ballet fans but who have never learned) to the Saturday matinée.   Of particular interest to me was that the programme included two works by female choreographers, plus the rarely-seen Limón piece. Not to me