title: Define direction for type @relation with from and to for the same type
body: <p>Is it possible to define directions for a type @relation with from and to for the same type in neo4j-graphql?</p>
  
  <pre><code>Type Relation @relation(name: "RELATION") {
    from: Node!
    to: Node!
    property: Int!
  }
  
  Type Node {
    id: ID!
    in: [Relation] 
    out: [Relation]
  }
  </code></pre>