Also modified ESLint config.

Also unpublish some domain model types to avoid API maintenance responsibilties.

The option connection is of no longer use in CRUD operations; only in runInTransaction.

This operation now returns an arbitrary existing entity (if any)

… is null

FindAllOptions.sortBy and filters attribute from FindOneOptions, FindAllOptions, and DeleteAllOptions used to be of type 'any' . Now devs will experience TS errors when they do not provide valid values.