Plugin arguments defaulting + moving plugin arguments to each corresponding plugin

[ingvagabund]

All plugin arguments need to be defaulted so a user is not required to specify every available argument. Also, to improve plugin modularity it's preferable to move corresponding plugin argument type to its plugin. So both defaulting and validation code is not separated from the plugin itself.

[damemi]

As a reference for anyone who wants to pick it up, #900 is an example of what we mean by Also, to improve plugin modularity it's preferable to move corresponding plugin argument type to its plugin. So both defaulting and validation code is not separated from the plugin itself.

[spike-liu]

/assign

[damemi]

/close
done in #954

[k8s-ci-robot]

@damemi: Closing this issue.

In response to this:

/close
done in #954

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[ingvagabund]

https://github.com/kubernetes-sigs/descheduler/pull/1006/files#diff-0129f73a80ed727af36e1b6007786fd044191cafed0900875f5a90b38ea33739R86 for wiring the defaulting of arguments