Add Dingtalk Notification

[ghf0128]

Dingtalk (Chinese: 钉谈; pinyin: Dīngdīng) is an enterprise communication and collaboration platform developed by the Alibaba Group. https://page.dingtalk.com/wow/dingtalk/act/en-caseall?spm=a213l2.14171093.3716270044.3.4dd32726qNX8tW&wh_biz=tm

It has been widely used in numerous collaborations in China ranging from small and medium-sized businesses to multinational corporations.

The function of the PR is to enable Dingtalk Robot to send notifications to group chats.