add global settings api

app/Models/GlobalSetting.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class GlobalSetting extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['key','value','type','description'];
+
+}