Update Socket to CPAN version 1.96

Update Socket to CPAN version 1.96

  [DELTA]

  1.96    CHANGES:
         * Fix Socket.t to use ok() instead of is() where required - RT73039
         * Complete rewrite of module docs; list all the constants and
           functions, updated SYNOPSIS
         * Added convenient Exporter tag :addrinfo for all the gai/gni-related
           symbols
         * Provide static synthesized newSVpvn_flags() replacement for older
           Perls
         * Implement getnameinfo() NIx_NOHOST and NIx_NOSERV extension flags

  1.95    CHANGES:
         * Implement the remaining AI_*, EAI_* and NI_* constants from
           Socket::GetAddrInfo
         * Declare configure-time dependency on ExtUtils::Constants 0.23 for
           when building out of core
         * Initial attempt at dual-life extraction from bleadperl