add icons for Character groups

www/analytics/plugins/ExamplePlugin/API.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Plugins\ExamplePlugin;
+
+/**
+ * API for plugin ExamplePlugin
+ *
+ * @method static \Piwik\Plugins\ExamplePlugin\API getInstance()
+ */
+class API extends \Piwik\Plugin\API
+{
+    /**
+     * Example method. Please remove if you do not need this API method.
+     * You can call this API method like this:
+     * /index.php?module=API&method=ExamplePlugin.getAnswerToLife
+     * /index.php?module=API&method=ExamplePlugin.getAnswerToLife?truth=0
+     *
+     * @param  bool $truth
+     *
+     * @return bool
+     */
+    public function getAnswerToLife($truth = true)
+    {
+        if ($truth) {
+            return 42;
+        }
+
+        return 24;
+    }
+}