pfSense

Use settings collected before.

Change order slightly.

Silence errors when trying to obtain gateway for PPTP

Correctly process static gateway entries which have a label and not a IP.

Remove function call not needed.

Would be good to give this function a sync/refresh with filter.inc changes.

Bring back to life tdr_create_ipfw_rule.

Since we do all that hard work on generate_optcfg_array to get all info for an interface use that info later in the file to gain speed.

Remove debugging.

Use the newly introduced functions and simplify function get_direct_network_list.
What does the latest function do actually?

Introduce 2 new functions
find_interface_subnet and get_interface_subnet
similar to their ip ones
find_interface_ip and get_interface_ip
to easy getting this info for dynamic interfaces.