Start to develop the budget module

app/Template/budget/index.php

@@ -0,0 +1,9 @@
+<div class="page-header">
+    <h2><?= t('Budget') ?></h2>
+    <ul>
+        <li><?= $this->a(t('Budget lines'), 'budget', 'create', array('project_id' => $project['id'])) ?></li>
+        <li><?= $this->a(t('Burn rate'), 'budget', 'index', array('project_id' => $project['id'])) ?></li>
+    </ul>
+</div>
+
+<p><?= t('Current budget: ') ?><strong><?= n($total) ?></strong></p>