add setting() helper; fix invalid defaults for mysql in table

app/Repositories/SettingRepository.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Repositories;
+
+use App\Models\Setting;
+use App\Repositories\Traits\CacheableRepository;
+use Prettus\Repository\Contracts\CacheableInterface;
+
+class SettingRepository extends BaseRepository implements CacheableInterface
+{
+    use CacheableRepository;
+
+    public function model()
+    {
+        return Setting::class;
+    }
+
+    /**
+     * Get a setting, reading it from the cache
+     * @param array $key
+     * @return mixed|void
+     */
+    public function get($key)
+    {
+
+    }
+
+    public function set($key, $value)
+    {
+
+    }
+}