storybook and cra updates

[gesquinca]

• sets up a new storybook app with basic stories
• sets up a new cra app with previous App.js
• changes rollup config to output umd modules instead of cjs
• updates app to rollup v1
• updates app to babel v7

[netlify[bot]]

Deploy preview for rimble-ui-storybook ready!

Built with commit 08d71776c58b110f6be859a66f6ba110e01e6d9e

https://deploy-preview-370--rimble-ui-storybook.netlify.com

[gesquinca]

Is there any reason to keep the example directory and contents?

@MikeLockz I don't think so. That's why I deleted it. Is it still there?