Permit Gutenblocks to be rendered without post settings and other chrome

[strarsis]

It would be nice if Gutenblocks can be rendered without all the wrapping elements around it or at least offering a way for adding a wrapping element around the element plus its extra wrapped elements.

[danielbachhuber]

Thanks for the suggestion, @strarsis.

I've filed this away in the Ideas project for future consideration. At this point in the Gutenberg development cycle, we're focusing on finishing the remaining features and then switching to bug fixing / polish.