Adds a new option for queries and mutations that defines which arguments or
attributes will use a global Relay ID and their type. This allows automatically
decoding them before hitting their action.
This paves the way to automatic translation derived from the arguments, which
will be implemented subsequently.
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Co-authored-by: Zach Daniel <zachary.s.daniel@gmail.com>
metadata on read actions is merged with the rest of the fields on the query, so must have a name unique from the attributes/calculations/aggregates.
The system will warn you if there is metadata on the underlying action that is being ignored, and will tell you how to fix it.
