automatically setup schema's

[wires]

Easy, but need to isolate it in one transaction, don't bundle with other operations

 [ { code: 'Neo.DatabaseError.Statement.ExecutionFailure',
       message: 'Cannot perform data updates in a transaction that has performed schema updates.',

code is here
https://github.com/graphmalizer/graphmalizer-core/blob/master/index.js#L103

(caused this https://github.com/histograph/core/issues/499)