Bench files not working properly (Improve Benchmark testing and usage)

[JacobMGEvans]

• nest() method seemed deprecated and was replaced by in the API so I used .middleware() seemed to handle the change ok.

• I will create a separate PR with the benchmark code changes. 😃

• [x] Initial Fix Bench files & add script in package.json

• [x] Update Bench folder

• [x] Improve Bench server.js code (could still refactor and improve more)

• [x] Improve Makefile

• [x] Improve run shell file

• [x] Improve output, accuracy, and stability/consistency. (no tests on benchmark code server.js)

51 is created, I am not sure but I think the server.js file can be improved for benchmark accuracy and stability/consistency.

Originally posted by @JacobMGEvans in https://github.com/koajs/router/pull/50#issuecomment-581224198

[niftylettuce]

I believe we can close this now? Let me know - I merged both of your PR's - is it ready to cut a new release to npm for?

[JacobMGEvans]

@niftylettuce

I believe we can close this now? Let me know - I merged both of your PR's - is it ready to cut a new release to npm for?

• no tests on benchmark code server.js
• could still refactor and improve server.js more