[descheduler] integration with evacuation API proposal

[jchaloup]

Hi everyone,

I am sharing a new descheduler proposal discussing pod evictions that are not completed right away. Instead, relying on external components for handling the eviction itself. Part of integration with the new evacuation API.

Please take a look at https://github.com/kubernetes-sigs/descheduler/pull/1354. Any feedback is appreciated.

Kind regards

Jan Chaloupka (@ingvagabund)