conntrack: T4523: Extend conntrack output direciton, mark, zone
conntrack: T4523: Extend conntrack output direciton, mark, zone

Extent op-mode "show conntrack table ipv4"
Add ability to see direction of flow:
    origianl - "Original src", "Original dst"
    reply - "Reply src", "Reply dst"

Add "mark" and "zone" options

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x