Upgrade Ignition, parse forward compatible, and drop Container Linux Configs#997

Merged

dghubble merged 2 commits intomainfrom drop-clc

Sep 26, 2022

+584-273

Commits on Sep 25, 2022

Upgrade coreos/ignition to v2 and drop earlier versions
dghubble
committed

Commits on Sep 26, 2022

Allow Butane configs with basic Go templating
dghubble
committed