Return applied k8s manifests as output vars

[eddymoulton]

As a generic way to return the desired manifest of resources, we can set output variables for each:

• Step
• Deployment target
• K8S resource

This way each variable contains a single K8S resource and we can combine it/treat it separately as required.

We deserialize each resource and pull out important values to assist in moving the data around and processing it.