Node module resolution

[schickling]

Allow the following:

# import Repository from "github-graphql-binding"

type Query {
  repo: Repository
}

This could potentially break the existing API by enforcing ./ for local imports.

Would be great to hear more thoughts on this feature proposal!

[kbrandwijk]

Also see #11. Moving import mySchema from 'github-graphql-binding' into the code file, and leaving # import Repository from 'mySchema' in the actual schema.