Add WeCom Connector

[droplet-js]

trafficstars

Preflight Checklist

• [X] I have searched the issue tracker for an issue that matches the one I want to file, without success.
• [X] I agree to follow the Code of Conduct that this project adheres to.

Problem Description

In China, many companies use enterprise WeChat to manage their employees

Proposed Solution

https://casdoor.org/docs/provider/oauth/weCom

Alternatives Considered

casdoor

Additional Information

No response