Implement a better management interface for Settings (#809)

app/Models/Setting.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Pterodactyl\Models;
+
+use Sofa\Eloquence\Eloquence;
+use Sofa\Eloquence\Validable;
+use Illuminate\Database\Eloquent\Model;
+use Sofa\Eloquence\Contracts\CleansAttributes;
+use Sofa\Eloquence\Contracts\Validable as ValidableContract;
+
+class Setting extends Model implements CleansAttributes, ValidableContract
+{
+    use Eloquence, Validable;
+
+    /**
+     * The table associated with the model.
+     *
+     * @var string
+     */
+    protected $table = 'settings';
+
+    /**
+     * @var bool
+     */
+    public $timestamps = false;
+
+    /**
+     * @var array
+     */
+    protected $fillable = ['key', 'value'];
+
+    /**
+     * @var array
+     */
+    protected static $applicationRules = [
+        'key' => 'required|string|between:1,255',
+        'value' => 'string',
+    ];
+}