Implement `bootctl` CLI and `move` command for Boot Operator Migration

[hardikdr]

What would you like to be added:
Implement a bootctl CLI tool that includes a move command to facilitate the migration of Custom Resource Definitions (CRDs) and Custom Resources (CRs) related to the Boot Operator from a source cluster to a destination cluster.

A sample command may look like:

bootctl move --source-kubeconfig=~/.kube/source-cluster.yaml \
             --target-kubeconfig=~/.kube/target-cluster.yaml \
             --namespace=metal-namespace

Additional flags that should be supported include:

• crds-only: Migrate only CRDs
• crs-only: Migrate only CRs
• dry-run: Preview the migration without making changes
• namespace: Specify the namespace to operate within

Why is this needed:
This feature will streamline the migration process for Boot Operator resources.

[Nuckal777]

@SzymonSAP is cooking a generic move implementation over here.