DX: [authorization helper] Create an authorization helper with current user already available

See https://gitlab.com/Chill-Projet/chill-bundles/-/issues/14

src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelperForCurrentUserInterface.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\MainBundle\Security\Authorization;
+
+interface AuthorizationHelperForCurrentUserInterface
+{
+    /**
+     * Get reachable Centers for the given user, role,
+     * and optionnaly Scope.
+     *
+     * @return Center[]
+     */
+    public function getReachableCenters(string $role, ?Scope $scope = null): array;
+
+    /**
+     * @param array|Center|Center[] $center
+     */
+    public function getReachableScopes(string $role, $center): array;
+}