Make timeout(s) for VM GuestOSShutdown in spec.PowerOffMode, spec.restartMode and spec.suspendMode configurable

[randomvariable]

Please describe the solution you would like.

In line with adding support for trySoft power off mode in Cluster API Provider vSphere in kubernetes-sigs/cluster-api-provider-vsphere#1982, for parity, we would like to have the timeout configurable for powerOffMode in particular.

This is because for certain (poorly behaved?) workloads, more than five minutes may be required to close down before a guest shutdown can occur. Allowing the timeout to be configurable would allow operators to choose something appropriate for their workload to strike a balance between fast shutdowns and avoiding data loss.

Is there anything else you would like to add?

Please tell us about your environment.

N/A

	Value	How to Obtain
Supervisor version		rpm -qa VMware-wcp on the vCenter appliance
Supervisor node image version		rpm -qa VMware-wcpovf on the vCenter appliance
Kubernetes version		kubectl version
VM Operator version		kubectl -n vmware-system-vmop get pods \ -ojsonpath='{range .items[*].spec.containers[*]}{.image}{"\n"}{end}' | \ sort -u | \ grep vmop | \ awk -F'/' '{print $3}' | \ awk -F: '{print $2}'