Allow grouping root fields by custom means

[jasonkuhrt]

Perceived Problem

Graffle is limited to this functional organization:

graffle.query.*
graffle.mutation.*

It can yield something like e.g.

graffle.query.post
graffle.query.posts
graffle.mutation.createPost
graffle.mutation.deletePost
graffle.mutation.publishPost

Which lacks semantic grouping around post

Ideas / Proposed Solution(s)

At generation time allow a user to supply custom grouping logic to be able to have e.g.

graffle.post.getOne
graffle.post.getMany
graffle.post.create
graffle.post.delete
graffle.post.mutation