v0.15.0

• Adds VictorySelectionContainer
• Changes when functional styles and props are evaluated (this may be a breaking change)
  Functional styles and props are now evaluated in the primitive components (Point, Bar etc.)
• Supports an active prop on all primitive components that is used when evaluating functional styles and props
• Tooltips now trigger active: true on both labels and data components
• defaultEvents are supported for containerComponents