Support additional route group attributes (#123)

Author: rwinzhang

src/Rebing/GraphQL/routes.php

@@ -1,9 +1,9 @@
 <?php
 
-Route::group([
+Route::group(array_merge([
     'prefix'        => config('graphql.prefix'),
-    'middleware'    => config('graphql.middleware', [])
-], function($router)
+    'middleware'    => config('graphql.middleware', []),
+], config('graphql.route_group_attributes', [])), function($router)
 {
     // Routes
     $routes = config('graphql.routes');

src/config/config.php

@@ -46,6 +46,14 @@
     // Any middleware for the graphql route group
     'middleware' => [],
 
+    // Additional route group attributes
+    //
+    // Example:
+    //
+    // 'route_group_attributes' => ['guard' => 'api']
+    //
+    'route_group_attributes' => [],
+
     // The name of the default schema used when no argument is provided
     // to GraphQL::schema() or when the route is used without the graphql_schema
     // parameter.