Evaluate options for splitting schema.graphql

[NoisyFlowers]

It might be necessary to split schema.graphql up as it grows. Consider whether this should be as simple as one file for the fundamental schema types and one for mutations. Or whether each fundamental type should get its own file that includes mutations. Or other possibilities.

[aazaff]

We have so many resolvers now that the graphql file is much simpler now so this is semi-moot.