Setup integration with Badgr

https://github.com/nodejs/badges has been set up to spearhead the node badges initiative.

In order to automate the process of issuing badges, I had been thinking about spinning up a service that would register webhooks using the GitHub API to automatically issue badges when certain conditions are met (first-time contribution, etc).

The conversation took place in https://github.com/nodejs/badges/issues/9 and I was instructed to get in contact with the team here in order to make it happen.

I'd need your help with the bare basics (if we go ahead and implement it as a function within the existing codebase for the bot). Any further assistance would also be appreciated.

未指定文件、测试或入口点。首先阅读现有的 bot 代码和链接的 Badgr 讨论，然后确定 GitHub API webhooks 和徽章条件将如何适配项目。达成自动化徽章发放的实施范围共识，即为完成。