Ncurses module for Swift
This is the result of the discussion held at https://forums.swift.org/t/ncurses-on-linux-with-swift/16913. It incorporates Ncurses into Swift, as well as the panel and menu headers. This package is SPM compatible and is tested under Linux. Finally, it is ready to be added into marathon too, with
marathon add lf-araujo/CNCURSES.