fcgiwrap: new package

Add package fcgiwrap from https://nginx.localdomain.pl/wiki/FcgiWrap



fcgiwrap is a simple server for running CGI applications over
FastCGI. It hopes to provide clean CGI support to Nginx (and other web
servers that may need it).

Signed-off-by: Thomas Claveirole <thomas.claveirole@green-communications.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>