Support React Native?

[elainen]

I'm adding this here just to have some kind of footprint on whether or not we should support React Native for this library. Some things to consider:

• How much of a lift would it be to change the structure to support RN (E.g. react-styleguidist build process)
• How would this affect projects that will use these components that don't use React Native?
• The level of effort in learning to use React Native on top of the parts of this this project (lerna, react-styleguidist, flow, etc) in order to begin making/updating reusable components.
• What is our outlook on building more native apps in the future?

[elainen]

Based on a discussion in #5, we will open the opportunity to implement both the DOM version and the native version of a component and keep them separate but within the same package/component directory.

The structure would maybe look something like:

import Button from '@hz-core/hz-button/DOMButton`;

or

import Button from '@hz-core/hz-button/NativeButton`;