Helm install with coredns

[azgabur]

Few things need to be added to support autodelegation script being introduced in Kuadrant/helm-charts-olm#48

• --set tools.coredns.zone=<random-prefix>.<zone> generate random prefix for subdomain so every cluster has unique subdomain. Maybe deterministic name solution could be used? Giving the subdomain name from cluster name? kubectl config view --minify -o jsonpath='{.clusters[0].name}'
• --set tools.coredns.enabled=true and --set tools.coredns.autodelegate=true should be set by pipeline