[RFR] Component Inference

[fzaninotto]

To improve the developer experience, react-admin can display content before developers choose which fields or input should be displayed inside a List or an Edit, based on inference on content.

This inference is then serialized to the console, to be copied/pasted directly into the code.

• Add inference engine
• Add support for Datagrid inference in <ListGuesser>
• Add support for Filter inference in <ListGuesser> (v2)
• Add support for SimpleForm inference in <EditGuesser>
• Add support for SimpleShowLayout inference in <ShowGuesser>
• Output inferred components as a string in the console
• Make sure inferences work at least on the Demo example
• Make sure inference does not force loading of all fields and inputs when cherry picking is enabled
• Document inference in List, Show, and Edit chapters
• Rewrite tutorial to show inference

Usage:

import { Admin, Resource, ListGuesser, EditGuesser } from 'react-admin';

const App = () => (
    <Admin dataProvider={...}/
        <Resource name="posts" list={ListGuesser} edit={EditGuesser} />
        <Resource name="comments" list={ListGuesser} edit={EditGuesser} />
    </Admin>
);

[fzaninotto]

Finally, after squashing most of the commits of this PR (to avoid drowning future blamers with my hesitations), it's Ready For Review!

[djhi]

Awesome 👍