Fix for Finalizers not running for Pods already terminating on start

[DaneRushtonVista]

Have observed in my test cluster (where we shutdown workloads overnight), that if the Operator shuts down first, the Terminating pods with the finalizer are left hanging even once the Operator restarts the following morning.
This is because the first time the Operator sees a Pod, it treats it as an Add, and doesn't check if it was already in the Terminating state.
Have copied what was being done on the Modified event type so that the Finalizers get run.

[buehler]

Can this be properly externalized into a method instead of copy paste?

[buehler]

Thanks for the collaboration @DaneRushtonVista, when you say "copied over", can it be properly engineered to reduce clutter and maintain a high code quality?