User Story:

As a developer I can configure a Delivery endpoint to provide more then one level of reference resolving so that clients of the endpoint can get all of the information they require in one request.

Notes:

Currently the reference resolver can only resolve one level deep which is useful but often does not meet a clients of the endpoints requirements.

For the SPA Editor epic, this is important if a page references a content item which then references an asset. A common case.

For example to get the full information for a tour (from the travel demo) I need

• the information of the tour node.
• the information of the tourTypes.
• the asset referenced  by the tourTypes (to get its icon.)