Add FindBy* queries

[mdjastrzebski]

Describe the Feature

The original React Testing Library uses findBy* queries for async element queries (docs). Essentially it combines getBy* query with waitFor, providing a cleaner shorter syntax for async queries.

Using findBy* queries is mentioned as high importance pattern by @kcdodds in this article.

Possible Implementations

Implemented probably as a combined getBy* and waitForElement.

Related Issues

Not known.

[thymikee]

Yea let's do it!