Add JSX option to to JS Beautify

[NodeJoSe]

What does this implement/fix? Explain your changes.

I would love to use the language-babel syntax package and JS Beautify together for my js files, this will make it possible!

[Glavin001]

.js files are not .jsx (JSX) files. Can you provide more information about this?
However, it looks like JS Beautify does support JSX syntax: beautifier/js-beautify#425 (comment)
My main concern is allowing users to use JS Beautify and have it break their JSX code.

[NodeJoSe]

Lenguaje-Babel is a package to add syntax highlight to JS files for JavaScript ES201x, plus React JSX files, i was using it to get better syntax on my js files using some es6 features, but i wont be able to use JS Beautify because it add a new gramar to my JS files "Babel ES6 JavaScript"

Maybe its better just to add that gramar to the JS Beautify options, and not the whole JSX, it is possible?

[Glavin001]

Thanks for contributing!

[NodeJoSe]

ill remake this pull request on the master branch too, sorry about that

[Glavin001]

Published to v0.29.15