This is breaking apart the network bridging and Containerfile building aspects from T3766 for better tracking

containers 
network service01 {
     enable-bridging
     prefix 10.72.1.0/24
 }

This change is the enable-bridging in the network. This disables the masquerading functionality of the network and exposes the network directly.

So a traceroute through my desktop. Hop #2 is the VyOS install running the container.

❯ traceroute 10.72.1.202
traceroute to 10.72.1.202 (10.72.1.202), 30 hops max, 60 byte packets
 1  route01.lan.kroy.io (10.9.1.3)  0.662 ms  0.618 ms  0.606 ms
 2  10.245.245.9 (10.245.245.9)  0.860 ms  0.699 ms  0.838 ms
 3  10.72.1.202 (10.72.1.202)  0.881 ms  0.870 ms  0.860 ms

There are two outstanding things from this that I'm not fully sure how to resolve.

• Right now this works flawlessly with zone based firewalls. But I'm not sure what to do to allow this interface to use traditional firewalling. Does it just need to include a template?

set zone-policy zone LAN interface cni-podman0

• cnd-podman0 is now available for use in NAT/firewalling/etc. But it's ugly and not very VyOS-y. This can be changed, but I'm not sure to what. container0, container1 etc? Whatever this ends up being would also have to be added to the list-interfaces.py script.