Style maps using Snazzy Maps style config JSON

[ala747]

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
It's a new feature :)

What is the current behavior? (You can also link to an open issue here)
The plain old good Google Maps color schema maps that looks all the same.

What is the new behavior (if this is a feature change)?
Now we could have the possibility of show our maps with all the groovy styles, colors and customizations that Snazzy Maps allow to change/manage.

Does this PR introduce a breaking change?
Not that I know.

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md#commit-message-format
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:
Feel free to comment if you want any change or to reject the PR if it doesn't met your idea for the component.