Generate SDL comments on top of nexus calls

[Weakky]

Description

nexus makes it sometimes hard to reason about the relations in your GraphQL schema. To fix that problem, we could generate comments on top of your objectType and prismaObjectType calls. eg:

objectType('Query', t => {
  t.string('hello')
})

Would result in the following generated comment:

/**
 * type Query {
 *   hello: String!
 * }
 */
prismaObjectType('Query', t => {
  t.string('hello')
})

[schickling]

An alternative could also be to have a VSCode plugin similar to Vetur. See demo.