Add nexlog logging library (#85)

Co-authored-by: chrischtel <92454917+chrischtel@users.noreply.github.com>

Author: chrischtel

README.md

@@ -192,6 +192,7 @@ TOC is generated by [markdown-toc](https://github.com/jonschlinkert/markdown-toc
 
 - [emekoi/log.zig](https://github.com/emekoi/log.zig) : a thread-safe logging library for zig.
 - [g41797/syslog](https://github.com/g41797/syslog) : [syslog](https://en.wikipedia.org/wiki/Syslog) RFC5424 client library.
+- [chrischtel/nexlog](https://github.com/chrischtel/nexlog) : A modern, feature-rich logging library for Zig with thread-safety, file rotation, and colorized output.
 
 ## Audio Processing