feature #15131 [Security] Moved Simple{Form,Pre}AuthenticatorInterfaces to Security\Http (WouterJ)

This PR was squashed before being merged into the 2.8 branch (closes #15131).

Discussion
----------

[Security] Moved Simple{Form,Pre}AuthenticatorInterfaces to Security\Http

Description
---

The `SimpleFormAuthenticatorInterface` and `SimplePreAuthenticatorInterface` rely on `Request`, which means it's a Http land class. This means they don't belong in core.

Having a form login that doesn't depend on the request is an option as well (e.g. a console application might use the question helper to implement a "form" login). However, then there is a need for a new abstraction of the request. I don't think it's worth it.

Furthermore, the only classes typehinting/relying on this interfaces can be found in `Security\Http`.

Implementation
---

The new interfaces extend the old ones for better backwards compability. Symfony doesn't trigger deprecation errors for interfaces, see https://github.com/symfony/symfony/commit/6f57b7b552e77a12f8116460671d78a3eb0ddbb9

PR Info Table
---

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
-------

ebb2064 [Security] Moved Simple{Form,Pre}AuthenticatorInterfaces to Security\Http

2 files changed, 42 insertions, 0 deletions

diff --git a/Http/Authentication/SimpleFormAuthenticatorInterface.php b/Http/Authentication/SimpleFormAuthenticatorInterface.php
new file mode 100644
index 0000000..112688c
--- /dev/null
+++ b/Http/Authentication/SimpleFormAuthenticatorInterface.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Http\Authentication;
+
+use Symfony\Component\Security\Core\Authentication\SimpleFormAuthenticatorInterface as BaseSimpleFormAuthenticatorInterface;
+
+/**
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+interface SimpleFormAuthenticatorInterface extends BaseSimpleFormAuthenticatorInterface
+{
+}
diff --git a/Http/Authentication/SimplePreAuthenticatorInterface.php b/Http/Authentication/SimplePreAuthenticatorInterface.php
new file mode 100644
index 0000000..afa8049
--- /dev/null
+++ b/Http/Authentication/SimplePreAuthenticatorInterface.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Http\Authentication;
+
+use Symfony\Component\Security\Core\Authentication\SimplePreAuthenticatorInterface as BaseSimplePreAuthenticatorInterface;
+
+/**
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+interface SimplePreAuthenticatorInterface extends BaseSimplePreAuthenticatorInterface
+{
+}