Add a biography property to http://schema.org/Person

Hi,

While working on the Person type for the Drupal schema.org module, I
couldn't find a property for the biography of a person.
http://schema.org/Person does not list any, and 'description' does not
really fit the bill: biographies are usually longer than one would expect
in 'description'. Typically biographies are composed of a few paragraphs
with basic HTML. A couple of examples:
http://www.imdb.com/name/nm0001035/bio
http://openspring.net/scor

I did a bit of research
<http://labs.mondeca.com/dataset/lov/index.html>and found that
http://vocab.org/bio/0.1/.html#biography is close to what we want:

An extended description or account of someone's life.
>
Usage:

It is expected that the value of this property is either a literal
> formatted with HTML markup or a pointer to an HTML document.


Would you consider adding 'biography' as a property for
http://schema.org/Person?

cheers,
Steph.