* Fix for ReadDir checking for file flag to use `S_ISREG(ctx->s.st_mode)` syntax.
* Added macro for strsep `XSTRSEP`. Added wolf implementation as `wc_strsep` enabled as C99 or `USE_WOLF_STRSEP`.
* Fix to use `gethostbyname` for c99 instead of `getaddrinfo`.
* For c99 use wolf strtok `wc_strtok`.
* Exposed API's for `wc_strtok` and `wc_strsep` when available.
* Include `sys/time.h` when available from autocon `HAVE_SYS_TIME_H` or c99.
* include `<strings.h>` when `HAVE_STRINGS_H` or c99.