We want to build a GraphQL field that allows users to read multiple items in a single request.
Data returned to include the same fields as when requesting data of a single item

itemsById(ids: [ItemId]!): [Item]!

Acceptance criteria:

• Limited to 50. No special treatment of priviliged clients needed
• it is being indicated to the client if certain items can't be retrieved e.g. because they don't exist/were deleted

Task Breakdown notes:

• happy path (create new list type, include tests)
• handle missing items
  • research how to indicate missing items
  • decide and implement
• handle redirected items
  • research how to indicate redirected items
  • decide and implement
• include complexity rule (not more than 50 items)