mpb v4.10.0

Added:

• func NewBarFiller(style string, reverse bool) Filler
• func NewSpinnerFiller(style []string, alignment SpinnerAlignment) Filler
• type BaseFiller
• func BarOnComplete(message string) BarOption

Removed:

• func BarNoBrackets() BarOption
  to achieve the same use:

mpb.TrimSpace(),
mpb.BarStyle(" =>- "),