fix issue #I3ODI5 swagger增加分组的功能

fix issue #I3PE3R 会签节点异常,提示'-1' was not present in ...
fix CodeSmith生成的后端代码报错 https://gitee.com/yubaolee/OpenAuth.Core/issues/I3OXJZ

OpenAuth.WebApi/Model/TagByApiExplorerSettingsOperationFilter.cs

@@ -0,0 +1,33 @@
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ApiExplorer;
+using Microsoft.AspNetCore.Mvc.Controllers;
+using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace OpenAuth.WebApi.Model
+{
+    public class TagByApiExplorerSettingsOperationFilter : IOperationFilter
+    {
+        public void Apply(OpenApiOperation operation, OperationFilterContext context)
+        {
+            if (context.ApiDescription.ActionDescriptor is ControllerActionDescriptor controllerActionDescriptor)
+            {
+                var apiExplorerSettings = controllerActionDescriptor
+                    .ControllerTypeInfo.GetCustomAttributes(typeof(ApiExplorerSettingsAttribute), true)
+                    .Cast<ApiExplorerSettingsAttribute>().FirstOrDefault();
+                if (apiExplorerSettings != null && !string.IsNullOrWhiteSpace(apiExplorerSettings.GroupName))
+                {
+                    operation.Tags = new List<OpenApiTag> {new OpenApiTag {Name = apiExplorerSettings.GroupName}};
+                }
+                else
+                {
+                    operation.Tags = new List<OpenApiTag>
+                        {new OpenApiTag {Name = controllerActionDescriptor.ControllerName}};
+                }
+            }
+            
+        }
+    }
+}