Repository-orm

Fix

- deprecate search_exception
- simplify signature of repository methods
- simplify signature of load_repository
- remove dependency with py

Fix

- correct the search on tinydb when a value is None
- correct the search on tinydb when a value is None

Refactor

- clean the Entity TypeVar definitions to EntityT

Fix

- Implement the ADR 005 deprecation

Refactor

- avoid duplication of code in repo._get when there are many entities

Feat

- repo.get() now accepts an `attribute` different than `id_`
- add `repo.empty()` to remove all entities from the repository

Feat

- add the is_closed property to the repo

Fix

- use Sequence as type hint for repo.add
- use Sequence as type hint for repo.add