Add otherProps option

[sugarshin]

Hi,

Would you please check this.
I did it add optional otherProps prop. For example, you can add id , data-* attribute to each node.
Thanks.

[markusenglund]

Hey, I think this is a good idea, but I'm thinking about rejecting it in favor of just letting developers pass in id attribute as a prop, even though your PR creates a more flexible api. The reason is that I can't see much of a use case for passing in any other prop than id. Could you maybe enlighten me about any such use cases?

This project hasn't been maintained for some time, so that's why no one acknowledged your PR until now. Sorry about that. I fully understand if you lost all interest in this PR.

[sugarshin]

@markusenglund Sorry for the late reply. It's Resolved. I will close this PR. Thank you!