:fire: Remove empty parenthesises in X.csv.
:lipstick: Refactoring tests.
:white_check_mark: Add tests for STDIN, STDERR.
:lipstick: Remove empty parenthesises.
:white_check_mark: Add PrintableString and OpenableString.
:white_check_mark: Add support for implicit conversion string2path in Wok.
:lipstick: Remove empty parenthesises about Writer and Quote.
:white_check_mark: Add methods FS and RS in Reader take a Regex parameter.