apps/examples/webserver: Fix to compile with CONFIG_NETUTILS_HTTPD_SENDFILE=y Also, in this PR, some configs such as CONFIG_NETUTILS_HTTPDFILESTATS can be selected by menuconfig. Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com> Approved-by: Gregory Nutt <gnutt@nuttx.org>