CNI: Update CRIO netconfig with matching subnet

add verification for enabling ingress, registry and gvisor addons

Support prerelease versions of podman binary

Fix bug in FailFastError and add unit test

It was trying to parse the newline character

Since FailFastError was just another `error`, all errors were technically `FailFastErrors`.

This code makes `FailFastError` a struct which implements the error interface, so that now errors can be distinctly identified as `FailFastError`'

Also added a unit test to prove that this works now.

Check for iptables file before determining container is running

apiserverHealthz: wait up to 8s before declaring failure

Add --cni flag (replaces --enable-default-cni), fix --network-plugin handling

docker driver on linux: Give warning if overlay module is not enabled

Improve error and logging emitted by WaitForAppsRunning

Reduce coredns replicas from 2 to 1