ports-mgmt/fastest_pkg: Update to 0.2.0

Added

  *  Timeout switch
  *  Verbose switch
  *  CHANGELOG.md file

Changed

  *  Switch from external cURL to pycurl
  *  Display human-readable formatting of bytes, using metric (powers of
     1000) representation
  *  Display only one decimal for bytes representation
  *  Code refactoring
  *  Installation is using entry_points instead of scripts

Removed

  *  Dependency to external cURL binary