[CORE][COMPOSER] Move extlib packages with immediate composer correspondent to composer dependencies

This adds a composer.json for all dependencies that are available

vendor/openid/php-openid/examples/server/lib/render/about.php

@@ -0,0 +1,47 @@
+<?php
+
+require_once "lib/session.php";
+require_once "lib/render.php";
+
+define('about_error_template',
+       '<div class="error">
+An error occurred when processing your request:
+<br />
+%s
+</div>');
+
+define('about_body',
+       '<p>
+  This is an <a href="http://www.openid.net/">OpenID</a> server
+  endpoint. This server is built on the <a
+  href="http://github.com/openid/php-openid">JanRain PHP OpenID
+  library</a>. Since OpenID consumer sites will need to directly contact this
+  server, it must be accessible over the Internet (not behind a firewall).
+</p>
+<p>
+  To use this server, you will have to set up a URL to use as an identifier.
+  Insert the following markup into the <code>&lt;head&gt;</code> of the HTML
+  document at that URL:
+</p>
+<pre>&lt;link rel="openid.server" href="%s" /&gt;</pre>
+<p>
+  Then configure this server so that you can log in with that URL.
+</p>
+');
+
+/**
+ * Render the about page, potentially with an error message
+ */
+function about_render($error=false, $internal=true)
+{
+    $headers = array();
+    $body = sprintf(about_body, buildURL());
+    if ($error) {
+        $headers[] = $internal ? http_internal_error : http_bad_request;
+        $body .= sprintf(about_error_template, htmlspecialchars($error));
+    }
+    $current_user = getLoggedInUser();
+    return page_render($body, $current_user, 'OpenID Server Endpoint');
+}
+
+?>