Storybook (or similar) Recipe

### What do you want and why?

I prefer to develop reusable components in isolation using Storybook so support in Blitz would be very useful.

According to https://2019.stateofjs.com/testing/ Storybook is significantly more popular than alternatives such as Styleguidist.

Some teams might also benefit from publishing their Storybook as a helpful guide for other developers.

### Possible implementation(s)

* Built-in Blitz support which would require adding the dependencies and config files to the generator templates
* As an installer

Given that Storybook is a popular choice and that it doesn't impose any restrictions on the user, I think built-in support could be best based on the "Convention over Configuration" argument.

### Additional context