[RFC]: add fuzzy auto-completion in REPL

### Description

This RFC proposes adding fuzzy auto-completion extending the current strict auto-completion. This would allow us to forgive things like spelling mistakes and suggest more relevant completions.

### Related Issues

Related issues https://github.com/stdlib-js/google-summer-of-code/issues/1

### Questions

I played around a bit trying to write a fuzzy matching algorithm and using existing ones.
Right now we are lexicographically sorting the completion results. should we do the same with fuzzy results mixed in? or should aim to sort results by 'relevancy'?

### Other

No.

### Checklist

- [X] I have read and understood the [Code of Conduct](https://github.com/stdlib-js/stdlib/blob/develop/CODE_OF_CONDUCT.md).
- [X] Searched for existing issues and pull requests.
- [X] The issue name begins with `RFC:`.