[Request] Return Mark data when request Item API if available

[lcandy2]

Currently, Piecelet needs to access both item data and associated mark information. It does this by requesting the item and then separately requesting the mark information. I determine if the user has mark information based on whether the second request returns a 200 or 404 status code. I believe this is a waste of resources.

Perhaps we could include the mark information within the item response itself, if the incoming request includes a valid authentication token.