Add the two instance graph examples that exercise the ProvONE model.  Original documents where developed at:

https://docs.google.com/a/nceas.ucsb.edu/drawings/d/1V29hQWX4Fskb-ArTGwmDMNu6YOUklrc-uYzwyAJb4CA/edit

and

https://docs.google.com/a/nceas.ucsb.edu/drawings/d/1pxKU0ItbFBCfvXo6EXHs4B8CHQ_h9iQYVAmMyQHCsOs/edit