Override identifier for K8s cluster

[sibuthomasmathew]

Is your feature request related to a problem? Please describe.

From the source code, it was identified that:

• identifier for a cluster is metadata.uid for the namespace kube-system
• identifier for other namespaced resource is the metadata.uid of the namespace the resource belongs to

We have a use-case where the K8s assets in a workspace are ephemeral in nature. That is, we create a cluster and scan it before destroying it.

The problem is they all show up in console with the same cluster name. However, the intention is to have the cluster name as a unique identifier. And when a scan is performed by passing the identifier as a argument, the result in console should be a rescan of the cluster, rather than a new cluster asset.

Describe the solution you'd like
A clear and concise description of what you want to happen.

When a k8s cluster is scanned using cnspec scan k8s, there must be an option to pass an argument that overrides the identification of a cluster from namespace UID to something defined by the user.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Currently, a hacky method is used where etcd snapshot of a cluster is used to restore it so that the UIDs of the namespace remain consistent