add hangman stub

src/Commands/Hangman.php

@@ -0,0 +1,23 @@
+<?php
+namespace BenBot\Commands;
+
+use BenBot\Utils;
+
+class Hangman
+{
+    private static $bot;
+
+    public static function register(&$that)
+    {
+        self::$bot = $that;
+
+        echo __CLASS__ . " registered", PHP_EOL;
+    }
+
+
+    public static function startGame($msg, $args)
+    {
+
+    }
+
+}