C++ Regexp libraries benchmark

[leon0399]

Idea: https://habr.com/ru/articles/812953/

Libraries:

• stdlib
• https://github.com/kokke/tiny-regex-c
• https://github.com/ximtech/Regex
• https://github.com/boostorg/regex
• https://github.com/intel/hyperscan
• https://github.com/google/re2
• https://github.com/hanickadot/compile-time-regular-expressions
• https://github.com/PCRE2Project/pcre2