Plugin for namespace scenarios

[ghost]

We need a plugin that, on demand, deletes a namespace and checks for recovery. This plugin should provide two steps, one for deletion and one for timed recovery check. The deletion should be done based on the namespace name (regexp) and/or a label selector.

[sandrobonazzola]

This kind of scenario was requested in chaos mesh as well (chaos-mesh/chaos-mesh#2567) and I don't see the point of this scenario to be implemented.