HTTP frameworks benchmark focused on D libraries

[tchaloupka]

Hi,
as it pops up now and then (last one in 
https://forum.dlang.org/thread/qttjlgxjmrzzuflrjiio@forum.dlang.org) I wanted to see the various D libraries performance against each other too and ended up with https://github.com/tchaloupka/httpbench

It's just a simple plaintext response testing (nothing fancy as 
in Techempower) but this interests me the most as it gives the 
idea about the potential of the library.

More details in the README.

Hope it helps to test some ideas or improve the current solutions.

Tom