* switch to composer for qrcode and otp dependencies

* move most OTP-related stuff into userhelper
* remove old phpqrcode and otphp libraries

vendor/thecodingmachine/safe/lib/Exceptions/OpensslException.php

@@ -0,0 +1,12 @@
+<?php
+
+
+namespace Safe\Exceptions;
+
+class OpensslException extends \Exception implements SafeExceptionInterface
+{
+    public static function createFromPhpError(): self
+    {
+        return new self(\openssl_error_string() ?: '', 0);
+    }
+}