Init: add code scaffolding

console.php

@@ -0,0 +1,11 @@
+#!/usr/bin/env php
+<?php
+
+require __DIR__ . '/vendor/autoload.php';
+
+use Symfony\Component\Console\Application;
+
+$application = new Application();
+$application->add(new \App\ExchangeCardsCommand());
+
+$application->run();