C,C++ Json benchmarks, conformance check

based on "Native JSON Benchmark" of Milo Yip (miloyip@gmail.com)

https://github.com/miloyip/nativejson-benchmark

The results always reflect the latest states

40+ libraries benchmarked !!!

active modules

Info about JSON parsing

http://seriot.ch/parsing_json.php

test platform:

• opensuse 15.2

• gcc 9.3

test hardware:

• AMD Bulldozer 8 core not too fast settings in BIOS