[ticket/11150] Add missing language keys

PHPBB3-11150

phpBB/phpbb/composer/manager.php

@@ -271,6 +271,14 @@ class manager implements manager_interface
 		throw new \phpbb\exception\runtime_exception('COMPOSER_UNSUPPORTED_OPERATION', (array) $this->package_type);
 	}
 
+	/**
+	 * {@inheritdoc}
+	 */
+	public function check_requirements()
+	{
+		return true;
+	}
+
 	protected function normalize_version($packages)
 	{
 		$normalized_packages = [];

phpBB/phpbb/composer/manager_interface.php

@@ -89,4 +89,11 @@ interface manager_interface
 	 * @throws runtime_exception
 	 */
 	public function start_managing($package, $io);
+
+	/**
+	 * Checks the requirements of the manager and returns true if it can be used.
+	 *
+	 * @return bool
+	 */
+	public function check_requirements();
 }