Add web cron ability #821 (#1073)

* Use database for kvp storage

* Read kvpstore

* Add web cron ability through API #821

* Style fixes

* Fix text

app/Models/Kvp.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models;
+
+use App\Contracts\Model;
+
+/**
+ * @property string key
+ * @property string value
+ */
+class Kvp extends Model
+{
+    public $table = 'kvp';
+    public $timestamps = false;
+    public $incrementing = false;
+
+    protected $keyType = 'string';
+
+    public $fillable = [
+        'key',
+        'value',
+    ];
+}