Align code standards with those in Victory (defaults/configurations/walmart/es6-react)

[tptee]

Victory uses defaults/configurations/walmart/es6-react and we'd like this to become out canonical style for future repos, including the component library under the radium umbrella. As Radium becomes an aggregator, this would be a good time to convert radium-style to match the new ESLint configuration.

[tptee]

In https://github.com/FormidableLabs/builder-victory-component/tree/master/config/eslint, there are extra config files for test and coverage that expose some globals to ESLint. It would help to split the npm run-script lint script into separate ones targeted for production, test, coverage, etc. Check out the package.json of https://github.com/FormidableLabs/builder-victory-component for an example (uses Builder).

[kylecesmat]

Closing in favor of #969