In 2007’s Capital Fringe Festival, local actress Zehra Fazal mounted an impressive and potentially controversial staging of My Friend Hitler, a solo show depicting the internal tension the dictator might have felt during his rise to power. Fazal returns to this year’s Fringe with another solo production that has been gaining some buzz. Headscarf and the Angry Bitch centers around Zed Headscarf, a character who is trying to be a professional folk-rocker. Using songs…