Add dumps features

[neupauer]

This PR adds features to manage dumps introduced in v0.15

[bidoubiwa]

Thanks a lot :) Could you add the two new functions at the bottom of the README?

[eskombro]

Great PR, thanks!

Just one question... I don't understand how the exceptions are handled in the tests (not very familiar with this js errors). Let me explain: I have the impression that errors thrown are relying on the "message" that the server send! If that's the case, I think it should check the errorCode instead of the error message, since error codes are meant to be stable, while error messages can be changed by MeilISearch anytime!

Nothing else to add for now, thanks for this contribution :)

[bidoubiwa]

Hey @eskombro this is because I used the following jest method:

await expect(SpecificFunction).rejects.toThrowError(ErrorMessage)

Which uses the printed output of the error, so in our case, the message field. This should be changed but we need to find the appropriate jest method. Could you create an issue about it?
@neupauer copy/pasted how I did the error handling in the other tests.

[curquiza]

@neupauer awesome work!! Really clear, thank you for that!

Tips: I see you do this PR from your master branch which we do not recommend 🙂 For example, if we have refused your PR, you would have had a broken master branch compared to ours. Let's keep your PR as it is now, it's okay, but next time, I recommend you creating a separate branch 😉
See here our contribution guidelines.

[neupauer]

@bidoubiwa I updated the README.md

@bidoubiwa, @eskombro, @curquiza Thank you for your feedback.