v5.0.0 update

app/Http/Controllers/V1/Admin/General/CountriesController.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Crater\Http\Controllers\V1\Admin\General;
+
+use Crater\Http\Controllers\Controller;
+use Crater\Http\Resources\CountryResource;
+use Crater\Models\Country;
+use Illuminate\Http\Request;
+
+class CountriesController extends Controller
+{
+    /**
+     * Handle the incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function __invoke(Request $request)
+    {
+        $countries = Country::all();
+
+        return CountryResource::collection($countries);
+    }
+}