add ArangoDb debug panel

panels/arangodb/views/summary.php

@@ -0,0 +1,12 @@
+<?php
+/* @var $panel \devgroup\arangodb\panels\arangodb\ArangoDbPanel */
+/* @var $queryCount integer */
+/* @var $queryTime integer */
+?>
+<?php if ($queryCount): ?>
+    <div class="yii-debug-toolbar-block">
+        <a href="<?= $panel->getUrl() ?>" title="Executed <?= $queryCount ?> database queries which took <?= $queryTime ?>.">
+            Ar. DB <span class="label label-info"><?= $queryCount ?></span> <span class="label"><?= $queryTime ?></span>
+        </a>
+    </div>
+<?php endif; ?>