[2.0] OperationModelBuilder does not register complex types

[robertmclaws]

If you have an OperationAttribute on your classes, it assumes that any entities and complex types are already registered. So if your Operations take non-Entities as inputs/outputs, you have to totally take over model generation for it to work.

Either RestierModelBuilder or RestierOperationModelBuilder should be adjusted to register unrecognized parameters or return types as Complex Types.