Add mofuw to nanoant/WebFrameworkBenchmark

[mratsim]

Nim is last, this is sad: https://github.com/nanoant/WebFrameworkBenchmark

[2vg]

@mratsim That is a good idea, but that repository does not seem to be updated for a long time.
However, I am submitting a pull request to another benchmark repository.

#169 add: added Nim's web framework "mofuw"

[2vg]

Now pull requests have been merged.
If you want another benchmark repository to participate, please also create an Issue.