integrate range-parser

[Uzlopak]

Integrates range-parser, modified for only our use case by combining the ranges.

My gut says, that we potentially can optimize parseRange but I have not the right angle yet.

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[mcollina]

lgtm

[gurgunday]

Bless you @Uzlopak

I aspire to your relentless dedication to improving the Fastify ecosystem.

Nit but maybe the benchmark package should be in devDeps?

[Uzlopak]

Thank you.

Yes the Benchmark package should be in devdependencies.
I am currently integrating the fresh package. Will provide a fix up PR after that.