feat: Connect HA chart using helm install

[as51340]

The goal is to install helm charts with a single command:

helm install ...

This should already set-up a cluster. Routing will be supported inside the cluster, if users want to use routing from the outside of the cluster, they will update bolt_server only.

TODO:

• docs about installing to a different namespace -> you need to change coordinator-hostname field

DONE

• cluster-setup will not fail even if cluster is already connected
• basic scenario
• support helm upgrade: Done by using post-install helm hook instead of post-upgrade
• deleted nurafo-log-file as a configuration parameter
• support installing chart to a different namespace
• support installing chart with a different number of instances