Added mofow(Nim)

This release includes following topics

• Lint yaml Thanks @waghanza 🎉
• Compile Jester in release mode Thanks @dom96 🎉
• add: added Nim's web framework "mofuw" Thanks @2vg 🎉
• bumped versions Thanks @Ch4s3 🎉
• Added libevent-based evhtp C++ web framework to the benchmarks Thanks @OvermindDL1 🎉
• Avoid (outdated) lock files Thanks @waghanza 🎉

---

I've removed the evhtp(cpp) from the targets.
Every frameworks or middlewares have to have a feature of parsing path parameter.

https://github.com/tbrand/which_is_the_fastest/pull/173/files#diff-e3b4a7c3d038b88c4d74d11f403fe216R24

But the above implementation is not that one.
That's not a feature but an implementation of cpp.