Add Pippo to the TechEmpower Benchmark

[gkresic]

I would like to see Pippo added to the TechEmpower Benchmark. I think this would get more users and I'm also curious how Pippo compares to the other frameworks.

Originally posted by @rygel in #409 (comment)

[decebals]

I remember about this subject.
See also TechEmpower/FrameworkBenchmarks#2244.

[gkresic]

Submitted: TechEmpower/FrameworkBenchmarks#7907

After (if?) pull request is merged, it will take around a week (!) for initial runs to appear at: https://tfb-status.techempower.com/

[gkresic]

Merged into upstream.

First benchmarks should be available around March 02. at https://tfb-status.techempower.com/

[gkresic]

First round of benchmarks with Pippo is completed, Pippo ended up on 62. place:

https://www.techempower.com/benchmarks/#section=test&runid=ef7991e0-35e3-4de1-94b6-1ac13e29b9c6&test=composite