[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/login.php

@@ -0,0 +1,65 @@
+<?php
+
+require_once "lib/session.php";
+require_once "lib/render.php";
+
+define('login_form_pat',
+       '<div class="form">
+  <p>
+
+    Enter your username into this form to log in to this server.  It
+    can be anything; this is just for demonstration purposes.  For
+    example, entering USERNAME will give you the identity URL
+
+    <pre>%s</pre>
+  </p>
+
+  <form method="post" action="%s">
+    <table>
+      <tr>
+        <th><label for="openid_url">Name:</label></th>
+        <td><input type="text" name="openid_url"
+                   value="%s" id="openid_url" /></td>
+      </tr>
+      <tr>
+        <td colspan="2">
+          <input type="submit" value="Log in" />
+          <input type="submit" name="cancel" value="Cancel" />
+        </td>
+      </tr>
+    </table>
+  </form>
+</div>
+');
+
+define('login_needed_pat',
+       'You must be logged in as %s to approve this request.');
+
+function login_render($errors=null, $input=null, $needed=null)
+{
+    $current_user = getLoggedInUser();
+    if ($input === null) {
+        $input = $current_user;
+    }
+    if ($needed) {
+        $errors[] = sprintf(login_needed_pat, link_render($needed));
+    }
+
+    $esc_input = htmlspecialchars($input, ENT_QUOTES);
+    $login_url = buildURL('login', true);
+    $body = sprintf(login_form_pat, idURL('USERNAME'), $login_url, $esc_input);
+    if ($errors) {
+        $body = loginError_render($errors) . $body;
+    }
+    return page_render($body, $current_user, 'Log In', null, true);
+}
+
+function loginError_render($errors)
+{
+    $text = '';
+    foreach ($errors as $error) {
+        $text .= sprintf("<li>%s</li>\n", $error);
+    }
+    return sprintf("<ul class=\"error\">\n%s</ul>\n", $text);
+}
+?>