Add some useful columns to 'kubectl get'

[sreyasn]

• Adding powerState on default and class, image on -o wide for virtualmachine
• Adding serviceType to virtualmachineservice
• Adding cpu & memory to virtualmachineclass
• Adding Age columns to crds with additional columns since they are omitted
  from default when columns are mentioned explicitly for a crd.

Testing Done:

root@4212e95af1461a21e76bcd525ad63941 [ ~ ]# kubectl get vm -A
NAMESPACE    NAME                          POWERSTATE   AGE
test-ns   jenkins-workload-1611253951   poweredOn    25h

root@4212e95af1461a21e76bcd525ad63941 [ ~ ]# kubectl get vm -o wide -A
NAMESPACE    NAME                          POWERSTATE   CLASS                IMAGE                       AGE
test-ns   jenkins-workload-1611253951   poweredOn    best-effort-xsmall   bitnami-jenkins-2.222.3-1   25h

root@4212e95af1461a21e76bcd525ad63941 [ ~ ]# kubectl get vmservice -A
NAMESPACE    NAME                          TYPE           AGE
test-ns   jenkins-workload-1611253951   LoadBalancer   26h

root@4212e95af1461a21e76bcd525ad63941 [ ~ ]# kubectl get virtualmachineclasses -A
NAME                  CPU   MEMORY   AGE
best-effort-2xlarge   8     64Gi     8d
best-effort-4xlarge   16    128Gi    8d
best-effort-8xlarge   32    128Gi    8d

root@4212e95af1461a21e76bcd525ad63941 [ ~ ]# kubectl get vmimage -A
NAME                        VERSION   OSTYPE              FORMAT   AGE
bitnami-jenkins-2.222.3-1             otherLinux64Guest   ovf      7d21h

root@4212e95af1461a21e76bcd525ad63941 [ ~ ]# kubectl get vmclassbinding -A
NAMESPACE    NAME                 VIRTUALMACHINECLASS   AGE
test-ns   best-effort-xsmall   best-effort-xsmall    42h