* feat:
- Add SendPasswordHasher class and interface
- DI for SendPasswordHasher to use Marker class allowing us to use custom options for the SendPasswordHasher without impacting other PasswordHashers.
* test: Unit tests for SendPasswordHasher implementation
* doc: docs for interface and comments
Co-authored-by: Maciej Zieniuk <167752252+mzieniukbw@users.noreply.github.com>