Go library to render progress bars in terminal applications

 Custom fork of github.com/gosuri/uiprogress
 .
 Progress bars improve readability for terminal applications with long
 outputs by providing a concise feedback loop.
 .
 Features:
 * Multiple Bars: can render multiple progress bars that can be tracked
   concurrently
 * Dynamic Addition: Add additional progress bars any time,
   even after the progress tracking has started
 * Prepend and Append Functions: Append or prepend completion percent
   and time elapsed to the progress bars
 * Custom Decorator Functions: Add custom functions around the bar along
   with helper functions