suricata HOME_NET should contain RED interfaces

The HOME_NET variable lists green and local networks, but it should also contain all the red networks.
Observed problem:
1. transparent proxy on port 80
2. ids rule like `alert http $HOME_NET any -> $EXTERNAL_NET any`
3. rule can't fire because the connection goes from nethserver red to net, but nethserver red is not in $HOME_NET

Adding the red address to HOME_NET the rule fires.
