Feature: Integration with sklearn-evaluation

[idomic]

Feature Description

I think adding an integration/tutorial and the right documentation of the framework can go a long way.

Usually when using autokeras you'd get the final model, and then you'll check performance and results.
This will allow an easier mechanism for the users to solve the second part of it.

Code Example

NA

Reason

This will allow a shorter pass to the best model for the user.

Solution

Either document the integration, write a tutorial and short examples.
Happy to take the PR!