This PR enables a single instance of ArgoCD to manage deployKF across multiple clusters.

For example, it is common to have an ArgoCD "management cluster" which deploys applications to other Kubernetes clusters, so those clusters don't need to have ArgoCD installed separately.

This is achieved by adding the following values:

• argocd.appNamePrefix:
  • Previously you could only apply one instance of the deployKF ArgoCD Applications to a cluster (as the names would overlap), this value lets you prefix the application names.
• argocd.destination.name:
  • Allows setting the spec.destination.name of the Application resources, in addition to our already existing argocd.destination.server value for setting spec.destination.server.