Add support for expand about isctl HOT 3 CLOSED

❯ isctl get kubernetes version --name 1.21.10-iks.0 --expand 'OvaImageTemplate($select=Name)'
INFO[0001] Single result, falling back to vertical output. NOTE: this is not valid YAML; use --output yaml to get valid YAML.
BootIso: null
Catalog: MoRef[kubernetes.Catalog/60627c1f7a6f722d30785b23]
KubernetesVersion: v1.21.10
Moid: 623d0cf97a6f722d30c29fcd
Name: 1.21.10-iks.0
OvaImageTemplate:
  ClassId: software.SolutionDistributable
  Moid: 623d069b6567612d31935f2a
  Name: ki-20220315-0-1.21.10-ubuntu20-iks-vsphere.ova
  ObjectType: software.SolutionDistributable
Qcow2NodeTemplate: null
Qcow2VirtualMachineTemplate: MoRef[software.SolutionDistributable/623d01606567612d3192f8f0]

❯ isctl get kubernetes clusterprofile -o yaml --select 'Name,NodeGroups' --expand 'NodeGroups($select=KubernetesVersion;$expand=KubernetesVersion($select=Version;$expand=Version($select=Name,Tags)))' | egrep -v "ObjectType|ClassId"
  Moid: 61af52617a6f722d31bd3d84
  Name: baelen-azure-arc
  NodeGroups:
    KubernetesVersion:
      Moid: 61f3bc387a6f722d31a3090a
      Version:
        Moid: 61f381e17a6f722d3093c093
        Name: 1.20.14-iks.0
        Tags:
        - Key: intersight.kubernetes.SupportStatus
          Value: UpgradeRequired
    Moid: 61af55bb7a6f722d31bdada4
    KubernetesVersion:
      Moid: 61f3bc387a6f722d31a3090a
      Version:
        Moid: 61f381e17a6f722d3093c093
        Name: 1.20.14-iks.0
        Tags:
        - Key: intersight.kubernetes.SupportStatus
          Value: UpgradeRequired
    Moid: 61af55cc7a6f722d31bdaf58