Add separate cron runner that doesn't use proc_open (#1405)

* Add alternative to using the artisan schedule runner

* StyleCI fixes

* Add additional cron time periods

* Style fixes

* Typo

* Update the web cron to use the new system

* Write out JSON for which tasks were run

* Rename cron.php to just cron

bin/cron

@@ -0,0 +1,35 @@
+#!/usr/bin/env php
+<?php
+/**
+ * THIS CRON FILE IS A BACKUP METHOD IF YOUR SERVER DOES NOT HAVE PROC_OPEN ENABLED
+ * YOU SHOULD TRY USING THE DEFAULT INSTRUCTIONS OF USING ARTISAN SCHEDULE:RUN
+ */
+define('LARAVEL_START', microtime(true));
+
+use App\Console\Cron;
+use App\Console\Kernel;
+
+require __DIR__.'/../vendor/autoload.php';
+
+/** @var Application $app */
+$app = require_once __DIR__.'/../bootstrap/app.php';
+
+/** @var Kernel $kernel */
+$kernel = $app->make(Kernel::class);
+
+// Run a null artisan thing just so Laravel internals can be setup properly
+$status = $kernel->handle(
+    $input = new Symfony\Component\Console\Input\ArrayInput([
+        'command' => 'version',
+    ]),
+    new Symfony\Component\Console\Output\NullOutput()
+);
+
+/** @var Cron $cron */
+$cron = app(Cron::class);
+$run = $cron->run();
+
+echo json_encode([
+    'count' => count($run),
+    'tasks' => $run,
+]);