Support FE/BE type alignment

[stephenh]

Given a GraphQL query like:

query {
  projectItem(id: 1) {
    bidItem { id name }
  }
}

And an input query like:

mutation {
  saveProjectItem(input: SaveProjectItemInput)
}

input SaveProjectItemInput {
  bidItem: EntityId
}

input EntityId { id: String! }

We'd like to bind that to a form like:

const formConfig: ObjectConfig<SaveProjectItem> = {
  bidItem: { type: "value", localKeys: "name" }
}

const jsx = <LazyBoundBidItemSelect field={form.bidItem}

And be able to pass the SelectField.options: initial + lambda

Questions:

• Is formConfig.bidItem a type: "value" or type: "object" with nested keys?
• Is the type of LazyBoundBidItemSelect a FieldState<{ id: string; name: string}> or an ObjectState<{ ... }>? Does it matter?