migration generator also includes copyright section

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

core/Command/Db/Migrations/GenerateCommand.php

@@ -42,6 +42,28 @@ class GenerateCommand extends Command implements CompletionAwareInterface {
 
 declare(strict_types=1);
 
+/**
+ * @copyright Copyright (c) {{year}} Your name <your@email.com>
+ *
+ * @author Your name <your@email.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
 namespace {{namespace}};
 
 use Closure;
@@ -173,11 +195,13 @@ class {{classname}} extends SimpleMigrationStep {
 			'{{namespace}}',
 			'{{classname}}',
 			'{{schemabody}}',
+			'{{year}}',
 		];
 		$replacements = [
 			$ms->getMigrationsNamespace(),
 			$className,
 			$schemaBody,
+			date('Y')
 		];
 		$code = str_replace($placeHolders, $replacements, self::$_templateSimple);
 		$dir = $ms->getMigrationsDirectory();