Pull renderer+builder from framework's package.json + a known list

[tmeasday]

Issue: Framework concept was out of date here.

What I did

• Pull framework from main:framework.
• Then search that package's package.json for known dependencies to work out renderer + builder.

This was an approach we thought was a good compromise between reliability and correctness.

How to test

See tests

STORYBOOK_TELEMETRY_DEBUG=1 yarn storybook

[shilman]

@tmeasday Changes look good to me. Do we want to handle the case where users specify builder or renderer manually in their main.js?

[tmeasday]

Is that possible in the new architecture? What's the API (core.builder + core.renderer? Or something else?)?

[shilman]

Yes, I think they will override framework settings. Though I haven't verified. Maybe we can tackle that later if we have time