Add Szabolcs Nagy's deflate/inflate code from git://git.suckless.org/flate Confirmed with him on IRC it's ok to use under toybox license, glued the files together and hammered square peg into round hole, no other changes yet.

#include "toys.h"

int xsocket(int domain, int type, int protocol)
{
  int fd = socket(domain, type, protocol);

  if (fd < 0) perror_exit("socket %x %x", type, protocol);
  return fd;
}