refactor Pry::Output and add `#tty?` method to it.
refactor Pry::Output and add `#tty?` method to it.

bronzdoc/pry,icebreaker/pry,nju520/pry,jasnow/pry,gfvcastro/pry,pvdb/pry,nju520/pry,jasnow/pry,josue804/debunker,printercu/pry,geoffreylitt/pry,jasnow/pry,gfvcastro/pry,raeno/pry,pvdb/pry,printercu/pry,raeno/pry,ngpestelos/pry,geoffreylitt/pry,icebreaker/pry,nju520/pry,ngpestelos/pry,josue804/debunker,bronzdoc/pry,raeno/pry