* Allows for specifying more customizations per field in each type.
Previously, the switch clause didn't allow sub-types to be modified, but
that became a problem with some of the more complex types.
* Fixed several problematic fields in the Device resource
* Removed the underscore separator from generated type names
This allows callers to create complex payloads; for example, to create a
Device type for a Unifi Switch with PortOverrides, the caller needs to
create these sub-types, which is not possible when it's purely embedded.
