[RFC] Add graphql type helpers

[mitchelvanbever]

Add a type utility to the helpers folder specifically with generics for typescript.

example of useful helper for graphql

export type getNode<Input extends { edges: any }> = NonNullable<
  NonNullable<Input['edges'][number]>['node']
>;

But also creating an [{label: 'label', value: Enum.value}] from an Enum would be very nice