Add WordPress profile area

[marksabbath]

Summary of change:
This PR brings the WordPress profile into AB block-author-profile.

This PR has been:

• Linted for syntax errors
• Tested against the WordPress coding standards
• Tested with the bundled test suite(s)

How to test:

• Download the branch;
• Add a new block-author-profile;
• Add any value to WordPress URL;
• The WordPress icon as a link should show.

Closes #201

Suggested Changelog Entry:

• Add WordPress Profile URL section on block-author-profile

[mindctrl]

This looks good to me and works fine. The only potentially "weird" thing to me is the label. "WordPress URL"... mainly because WordPress is software. But that's just a minor quibble. We're referring to wordpress.org profile here, right @marksabbath? Any thoughts @mikemcalister?

[marksabbath]

This looks good to me and works fine. The only potentially "weird" thing to me is the label. "WordPress URL"... mainly because WordPress is software. But that's just a minor quibble. We're referring to wordpress.org profile here, right @marksabbath? Any thoughts @mikemcalister?

Yeap, exactly @mindctrl we could add a description as we have in the email field making in clear. Something like:

"Use here your wordpress.org profile."

[mikemcalister]

What about "WordPress Profile URL"? Great addition here, @marksabbath!

[marksabbath]

What about "WordPress Profile URL"? Great addition here, @marksabbath!

Definitely works for me. Should we use that as Title or description @mikemcalister ?

[mindctrl]

Sounds good, thanks @marksabbath!

[mindctrl]

Merged here: 916f875

Thanks @marksabbath!