Option to hide the reCAPTCHA badge

I've created a simple patch for the 2.0.0 branch that would achieve this.
It seems to works but more extensive testing would be required. The labels/descriptions could probably also be better.

I decided against making the branding text configurable as Google seems to want/require this specific text.

This isn't a polished implementation of this feature but I hope it provides a good base to work from.

I noticed that I forgot to add my css file to the patch.
That's the only difference in this patch

Automatically closed - issue fixed for 2 weeks with no activity.