Support for helm template

[nesl247]

Is your feature request related to a problem? Please describe.
If helm is only used for templating, no applications are discovered.

Describe the solution you'd like
Since helm has standards, and those include app versions and such, it should be possible to discover installations via annotations, rather than expecting helm install to have been used. This will allow terraform and pulumi based helm installations to be shown.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.