The curie rendering has been improved in the following ways:
- Resources now get their embeds inspected for namespaced keys and curies are added if at least one is found. This makes sure curies are also rendered if no namespaced link is registered.
- Nested resources skip curies entirely, assuming they have been added to the root correctly.
Had to change the order of _embedded and _links to make sure the embedded elements are processed first to tweak the links to indicate the need for curies.