New: Client linking on Individuals, Organisations, and Sole Traders

You can now map between individuals, sole traders, and organisations with their associated clients.

What's been added

• GET /individuals and GET /individuals/:id — Each individual that is also a client (i.e. client type is individual) now includes a nested client object with links and ID.
• GET /organisations and GET /organisations/:id — Organisation entities that are also clients now includes a nested client object with links and ID.
• GET /sole-traders and GET /sole-traders/:id — Sole trader entities now includes a nested client object with links and ID.
• GET /clients — Each client's entity reference now includes links (self and web) back to the underlying individual, organisation, or sole trader.