Implemented device code grant

common/tests/fixtures/data/oauth-device-codes.php

@@ -0,0 +1,15 @@
+<?php
+declare(strict_types=1);
+
+return [
+    [
+        'device_code' => 'nKuYFfwckZywqU8iUKv3ek4VtiMiMCkiC0YTZFPbWycSxdRpHiYP2wnv3S0KHBgYky8fRDqfhhCqzke7',
+        'user_code' => 'AAAABBBB',
+        'client_id' => 'ely',
+        'scopes' => ['minecraft_server_session', 'account_info'],
+        'account_id' => null,
+        'is_approved' => null,
+        'last_polled_at' => null,
+        'expires_at' => time() + 1800,
+    ],
+];