Poco now use C++17. We can take some old code away because of that. We
also raise requiments for C++17 so everything works as excpected with
it.
Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
* fix(Net): Add Unix socket support on windows #4208
* feat(Net): add abstract local socket support #4208
* fix(PollSet): use localhost socket in PollSet on windows when available #4208
* fix(PollSetTest): comment checking unconnected sockets status (Linux epoll signals them as readable/writable)