Added plugin controller (WIP)

app/Controller/PluginController.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Kanboard\Controller;
+
+/**
+ * Class PluginController
+ *
+ * @package Kanboard\Controller
+ * @author  Frederic Guillot
+ */
+class PluginController extends BaseController
+{
+    /**
+     * Display the plugin page
+     *
+     * @access public
+     */
+    public function show()
+    {
+        $this->response->html($this->helper->layout->plugin('plugin/show', array(
+            'plugins' => $this->pluginLoader->plugins,
+            'title' => t('Installed Plugins'),
+        )));
+    }
+
+    /**
+     * Display list of available plugins
+     */
+    public function directory()
+    {
+        $plugins = $this->httpClient->getJson(PLUGIN_API_URL);
+
+        $this->response->html($this->helper->layout->plugin('plugin/directory', array(
+            'plugins' => $plugins,
+            'title' => t('Plugin Directory'),
+        )));
+    }
+}