Add support to nginx

[fdaciuk]

Create command to automatically add an entry in nginx config file, in any OS.

Command should looks like this:

hoost nginx add --port 80 --server_name myserver.local --access_log logs/access.log --location /public --alias /myserverpath/public --expires max

Or just:

hoost nginx add

And use inquirer to asking for port, server_name, etc.