Local and Live functions where doing and returning the same thing,
giving empty results by default. Fix the local function by copying the
objects before fetching the live version.
Reduce all uses of Unstructured to the simpler form, and avoid asking
for mapper or typer unless it is required. Use Typed() for places that
previously used VersionedObject, and remove paths for versioned objects
from code that is now using unstructured.
`kubectl alpha diff` lets you diff your resources against live
resources, or last applied, or even preview what changes are going to be
applied on the cluster.
This is still quite premature, and mostly untested.
