【优化】移除后台会员列表分页联表中的childNum赋值，调整为接口端直接查询

CoreCms.Net.Repository/User/CoreCmsUserRepository.cs

@@ -133,7 +133,7 @@ namespace CoreCms.Net.Repository
                     isDelete = p.isDelete,
                     type = (int)sWeChatInfo.type,
                     parentNickName = sParentUser.nickName,
-                    childNum = SqlFunc.Subqueryable<CoreCmsUser>().Where(o => o.parentId == p.id).Count(),
+                    //childNum = SqlFunc.Subqueryable<CoreCmsUser>().Where(o => o.parentId == p.id).Count(),  //影响效率，移除掉。放到接口端单独计算。
                 })
                 .MergeTable().With(SqlWith.Null)
                 .OrderBy(orderByExpression, orderByType)