Convert class components to function components

[KenanYusuf]

Motivation

Most of the Victory components are classes. We should look at converting these to function components to simplify things a little and improve developer experience.

Components to convert

Some of these components may need to be converted simultaneously, and in some cases, it may make more sense to use component composition over class inheritance.

• victory-container Containers and portal refactor #2799
• add-events
• victory-clip-container
• victory-transition
• victory-portal Containers and portal refactor #2799
• victory-zoom-container Containers and portal refactor #2799
• victory-voronoi-container Containers and portal refactor #2799
• victory-cursor-container Containers and portal refactor #2799
• victory-brush-container Containers and portal refactor #2799
• victory-selection-container Containers and portal refactor #2799
• victory-bar
• victory-animation Convert victory-animation to function component #2788
• victory-accessible-group Refactor victory-accessible-group to a function component #2777
• victory-voronoi
• victory-tooltip
• victory-shared-events
• victory-scatter
• victory-polar-axis
• victory-pie
• victory-line
• victory-legend
• victory-histogram
• victory-errorbar
• victory-create-container Containers and portal refactor #2799
• victory-candlestick
• victory-brush-line
• victory-box-plot
• victory-axis
• victory-area