added frontend and made it usable

frontend/bin/console

@@ -0,0 +1,19 @@
+#!/usr/bin/env php
+<?php
+
+use App\Kernel;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+
+if (!in_array(\PHP_SAPI, ['cli', 'phpdbg', 'embed'], true)) {
+    echo 'Warning: The console should be invoked via the CLI version of PHP, not the '.\PHP_SAPI.' SAPI'.\PHP_EOL;
+}
+
+set_time_limit(0);
+
+require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
+
+return function (array $context) {
+    $kernel = new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
+
+    return new Application($kernel);
+};