A progress bar conveys the progress of a task. This package
implements a progress bar that is displayed in a terminal.
See the module System.ProgressBar to get started or look at the
terminal-progress-bar-example package.
The animated progress bar depends entirely on the interpretation of
the carriage return character ('\r'). If your terminal interprets
it as something else than "move cursor to beginning of line", the
animation won't work.