ISLAMABAD — Wonder Woman and Supergirl now have a Pakistani counterpart in the pantheon of female superheroes — one who shows a lot less skin. Connect With Us on Twitter Follow @nytimesworld for international breaking news and headlines. Twitter List: Reporters and Editors Meet Burka Avenger: a mild-mannered teacher with secret martial arts skills who uses a flowing black burka to hide her identity as she fights local thugs seeking to shut down the girls’ school where she works. Sadly, it’s a battle Pakistanis are all too familiar with in the real world. The Taliban have blown up hundreds of schools and attacked activists in Pakistan’s northwest because they oppose girls’ education. The…