* switch to composer for qrcode and otp dependencies

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

vendor/thecodingmachine/safe/generated/rpminfo.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Safe;
+
+use Safe\Exceptions\RpminfoException;
+
+/**
+ * Add an additional retrieved tag in subsequent queries.
+ *
+ * @param int $tag One of RPMTAG_* constant, see the rpminfo constants page.
+ * @throws RpminfoException
+ *
+ */
+function rpmaddtag(int $tag): void
+{
+    error_clear_last();
+    $result = \rpmaddtag($tag);
+    if ($result === false) {
+        throw RpminfoException::createFromPhpError();
+    }
+}