PSR-12 compliancy (#1213)

composer.json

composer.lock

lib/SimpleSAML/Auth/DefaultAuth.php

lib/SimpleSAML/Auth/LDAP.php

lib/SimpleSAML/Auth/ProcessingChain.php

lib/SimpleSAML/Auth/ProcessingFilter.php

lib/SimpleSAML/Auth/Simple.php

lib/SimpleSAML/Auth/Source.php

lib/SimpleSAML/Auth/State.php

lib/SimpleSAML/Auth/TimeLimitedToken.php

lib/SimpleSAML/Configuration.php

lib/SimpleSAML/Database.php

lib/SimpleSAML/Error/Assertion.php

lib/SimpleSAML/Error/ConfigurationError.php

lib/SimpleSAML/Error/Error.php

lib/SimpleSAML/Error/Exception.php

lib/SimpleSAML/Error/NotFound.php

lib/SimpleSAML/HTTP/Router.php

lib/SimpleSAML/IdP.php

lib/SimpleSAML/IdP/TraditionalLogoutHandler.php