update victory-core and changelog

[boygirl]

BREAKING CHANGES:

victory-core/299 Containers are now rendered in parent divs. This may be a breaking change for parent styles.

518 Naming changes for container props

VictoryBrushContainer

• dimension -> brushDimension
• selectionComponent -> brushComponent
• selectedDomain -> brushDomain
• selectionStyle -> brushStyle
• onDomainChange -> onBrushDomainChange

VictoryCursorContainer

• dimension -> cursorDimension
• onChange -> onCursorChange

VictorySelectionContainer

• dimension -> selectionDimension

VictoryVoronoiContainer

• dimension -> voronoiDimension

VictoryZoomContainer

• dimension -> zoomDimension
• onDomainChange -> onZoomDomainChange

Other Changes

• 516 Ensure that VictoryZoomContainer respects clipId
• 517 VictoryZoomContainer and VictoryVoronoiCOntainer should ignore legend children
• 519 Adds an alignment prop for VictoryBar so that bars may be rendered with "start", "middle" (default), or "end" alignment relative to their value.
• 520 Adds an allowPan prop for VictoryZoomContainer. (Default true)
• 521 Changes how children of VictoryZoomContainer are clipped to enable better zooming for VictoryPortal
• 522 Fixes a bug in VictoryZoomContainer that effected time scale charts with zoomDomain specified