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

app/Contracts/CronCommand.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Contracts;
+
+abstract class CronCommand extends Command
+{
+    /**
+     * @return mixed
+     */
+    abstract public function callEvent();
+
+    /**
+     * Adjust the logging depending on where we're running from
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        $this->redirectLoggingToFile('cron');
+    }
+}