react: clean up codebase

[michael-siek]

It looks like everything is in a single file we should separate them out into directory structures similar to the other packages in the repo. I think this should help with development for others moving forwards.

.
├── src
│   └── lib
├── test
├── cypress
└── README.md

Also the reactAxe() function should take destructures args instead (this would be a breaking change)

interface ReactAxeParams {
	React: typeof React
	ReactDOM: typeof ReactDOM
	timeout: number
	conf: ReactSpec
	context?: ElementContext
}

const reactAxe = async ({
	React,
	ReactDOM,
	timeout,
	conf = {},
	context
}: ReactAxeParams) : Promise<void> { }