net/bwping: Update to 1.16

• Use opaque struct addrinfo everywhere, get rid of inet_ntop() in favor of getnameinfo();
• Fix build on Solaris;
• Minor fixes & improvements.

PR: 242007
Submitted by: maintainer
Relnotes: https://github.com/oleg-derevenetz/bwping/releases/tag/RELEASE_1.16