Add LogLayer (logging library)

[theogravity]

Checklist:

• [x] I've read and understood Contributing Guidelines.
• [x] I've added the new resource at the end of its section.
• [x] This resource is out there for a while, and actively maintained.
• [x] This resource is popular enough and has at least a few hundred stars on GitHub.

---

This adds my library, loglayer to the list of logging libraries. I've been maintaining the library for years and just launched the new 5.x version along with a dedicated site for it.

[Ashe-reset]

这是来自QQ邮箱的假期自动回复邮件。   您好，我最近正在休假中，无法亲自回复您的邮件。我将在假期结束后，尽快给您回复。

[theogravity]

@Ashe-reset Just checking in. Since this PR, LogLayer has grown to 358 stars and 50k downloads / week.

[theogravity]

Or @sorrycc