修改界面，重构授权代码

OpenAuth.Domain/Interface/ICategoryRepository.cs

@@ -11,7 +11,12 @@ namespace OpenAuth.Domain.Interface
         IEnumerable<Category> LoadInOrgs(params Guid[] orgId);
         int GetCategoryCntInOrgs(params Guid[] orgIds);
         IEnumerable<Category> LoadInOrgs(int pageindex, int pagesize, params Guid[] orgIds);
-        
+
+        /// <summary>
+        /// 获取子分类ID
+        /// </summary>
+        Guid[] GetSubIds(Guid orgId);
+
         void Delete(Guid id);
 
     }