Refactor property retrieval for improved maintenance

Refactor how KubernetesResources gets properties from the underlying JSON store. Instead of keeping maps of keys to values, assume the path is represented by a dot delimited string that can be overriden if needed for various versioning. This will extremely facilitate support of future api versions as well as adding new kinds. Need to keep on the lookout for places that allow dots in the key (e.g annotations) so these need to be treated differently.