- compile wolfcrypt with kdf.c, to avoid undefined symbols in tls13.c
- define WOLFSSL_HAVE_ERROR_QUEUE to avoid endless loop SSL_get_error
- Do not use SSL_CTX_set_tmp_dh/get_dh2048, this would require additional
  compilation options in WolfSSL. Disable it for WolfSSL build, it works
  without it anyway.
- fix "macro already defined" Windows warning.