Feature: Support UserProvider

[xavierleune]

With that feature you can use a Ting Entity directly in your main security configuration:

security:
    # https://symfony.com/doc/current/security.html#registering-the-user-hashing-passwords
    password_hashers:
        Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface: 'auto'
    # https://symfony.com/doc/current/security.html#loading-the-user-the-user-provider
    providers:
        app_user_provider:
            ting:
                class: App\Entity\User
                property: email

Your entity will have to implements the following interfaces: Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface (for password authenticated users) and Symfony\Component\Security\Core\User\UserInterface (common to all kind of users).

You'll have to implement __serialize also.

[vgreb]

Seems okay to me. Can you solve conflicts and fix minor issues ?

[xavierleune]

@vgreb branch rebased 👍