Implement provider config abstraction for AWS

Background

To enable the MachineProvider to be platform agnostic, we have an abstraction on the provider configs that provides functionality like extracting or injecting a failure domain from the config and spitting out the config as a structured object.

This needs to be implemented so that we can continue work on the core of the MachineProvider.

The AWS implementation is currently a skeleton but the tests should define the behaviour.

The code can be found https://github.com/openshift/cluster-control-plane-machine-set-operator/tree/main/pkg/machineproviders/providers/openshift/machine/v1beta1/providerconfig

Steps

• Review the skeleton code and existing pending tests
• Understand the desired behaviour
• Implement the functions to pass the test suite

Stakeholders

• Cluster Infra (Joel)

Definition of Done

• AWS implementation of the provider config abstraction is fully implemented

• Docs

• N/A

• Testing

• N/A