Expose kubeVersion in Chart.yaml

[jhash1]

Is your feature request related to a problem? Please describe.
Expose the Kubernetes version field located in the chart.yaml file to provide visibility into K8s compatibility.
Newer Helm releases shown in Nova might not be compatible with all versions of Kubernetes and it would be helpful to show this field if available in the chart.yaml.

Describe the solution you'd like
When displaying a table for newer Helm releases, add a column for Kubernetes compatibility version.
An option would be to pass a flag on which add-ons have compatibility with your upgraded version of Kubernetes.
If not available, add a default of notAvailable in the output

Additional context
This field is optional which introduces a consistency problem but would be helpful for those who made a version available.
kubeVersion is A SemVer range of compatible Kubernetes versions and would require parsing.