Write a function to iterate through the GraphQL schema object

[evanmcneely]

Iterate through the graphQL schema object to determine field weights for query cost calculation.

Input: graphQL schema object
Output: An object with properties as types and values as weights. These could be nested in some way...
example outpu:, schema has type user with feilds username and password

{
  name: {
    weight: 1,
    feilds: {
      username: 0,
      password: 0,
    }
  }
}