Default settings for link field comparison should compare label and URI, not just URI

The link field has its own plugin which has options to include/exclude the label and URI from comparison. By default, only the URI is included in the comparison output. I'm not sure why this is... it seems to make more sense to default to including both. Changing the link label only in a revision is a valid change that could be useful to see in the comparison.

I propose the default be updated to include both.