Add Task CSV export and Kanboard CLI

app/Core/Tool.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Core;
+
+/**
+ * Tool class
+ *
+ * @package core
+ * @author  Frederic Guillot
+ */
+class Tool
+{
+    /**
+     * Write a CSV file
+     *
+     * @static
+     * @access public
+     * @param  array    $rows       Array of rows
+     * @param  string   $filename   Output filename
+     */
+    public static function csv(array $rows, $filename = 'php://output')
+    {
+        $fp = fopen($filename, 'w');
+
+        if (is_resource($fp)) {
+
+            foreach ($rows as $fields) {
+                fputcsv($fp, $fields);
+            }
+
+            fclose($fp);
+        }
+    }
+}