Make containerExclude a newline-separated list

[der-eismann]

Describe what happened:
We are trying to exclude all daemonset images in DataDog, since their metrics cost too much and don't bring any value to us. That causes the containerExclude line in values.yaml to be 1.300 chars long, completely losing all overview about the entries.

Describe what you expected:
It would be much easier to declare the list newline-separated like

  containerExclude: |
    image:074509403805.dkr.ecr.eu-west-1.amazonaws.com/docker/prom/node-exporter
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/amazon-k8s-cni
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/amazon/aws-network-policy-agent
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/eks/aws-ebs-csi-driver
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/eks/aws-efs-csi-driver
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/eks/csi-node-driver-registrar
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/eks/kube-proxy
    image:602401143452.dkr.ecr.eu-west-1.amazonaws.com/eks/livenessprobe

I'm sure there's a Helm template function for this 🙂