* Modify the upgrade workflow to load the actor configuration to be available to the actors
  [_] Note: The same sort of code needs to be added to other workflows that need actor config.  For
      instance, the pre-upgrade workflow.
* Define potential config schemas for RHUI and for listing rpm packages to be treated specially
  during transations.
* Add config schemas to the rpmtransactionconfigtaskscollector as a sample of using it.
* The actor config is supposed to live in the actor:
  We decided that we weren't going to share config schema via python import.  Instead, Actors would
  need to copy the schema into themselves.  That way the framework can check whether the schema for
  two Actors is out of sync and force the user to correct the code before running.
  * However, the framework is currently only reading from the configs dir at the repository level,
    not inside the actor.  Need to remove the copy from the repository level once that is fixed.
* Get the rpm package liste from both legacy location and actor config.

Depends-On: 870

We want this to come from the actor.

Depends-On: 870

Rework RHUI configuration from 'providing all input parameters to the
decision algorithm' into 'here is how the final decision should look
like'.

leapp needs those to know what to uninstall during the upgrade

feed actor mocks the default configuration