Add query param support for URL sharing

[gpbmike]

It would be cool to save the grid state to the URL so you can share it.

[Canopix]

I forked the repo, I going to work on this!

[sdras]

Cool, thanks @Canopix!

[Canopix]

I'm thinking about make this feature converting the State to URL query params, (using query-string package).
If someone has any idea to implement this feature or something that guide the development of this, feel free to share it here.

At the moment, I'm doing the logic for convert array object inside the state (childarea for example) to query params.