[Epic:.NET] Generate the entity DTOs and actions as a private case of generic modules, dtos, and actions (and not with special treatment as entities per se

[mulygottlieb]

• All DTOs (custom and entity) to be created in a uniform way via ModuleDTOs
• Actions (methods in the service/controller/resolver) "outer shell" should also be uniform (outer shell = method signature, input+output, some of the annotations) while only the implementation itself will be unique for each type, and perhaps later this too can be overridden from the server)