Add cleanup_controller service and method to controller manager and also add its CLI script

[destogl]

Background

Better support for controller's lifecycle, that is the same as for the Lifecycle node. To transition between inactive and unconfigured state, we should provide service that enables that. The event name is cleanup.

Do the following:

1. Add new method cleanup controller in the controller manager.
2. Copy cleanup content form the unload_controller method.
3. Add new service called cleanup_controller in the CM.
4. Add new CLI for this function, i.e., enable setting in unconfigured state controller from CLI.

Instructions

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[MOLOCH-dev]

Hi, I'd like to take up this issue. Could you please assign it to me @destogl

[bailaC]

@destogl , I can pick this.

[bailaC]

#1236