This exposes all fields named `id` as GlobalIDs so they can be used
across our entire GraphQL implementation.

When the objects loaded are `ApplicationRecord`s. We'll use our
existing batchloading to find them. Otherwise, we'll fall back to the
default implementation of `GlobalID`: Calling the `.find` method on
the class.

We can query namespaces, and nested projects.

Projects now exposes statistics

and removing unnecessary code

Add new query for Groups, with new
GroupType and NamespaceType