Modify all `build` tests to use the raw,
non-sorted output of build. This makes every test
provide coverage for how kustomize re-orders (or
doesn't reorder) resources during processing.
Going forward, the ordering of resources in
_expected_ output should match the depth-first
ordering specified in the `resources:` field used
in the test's kustomization file.
The only exception to this rule would be tests
that actually confirmed some other output
ordering, e.g. the test of the
`LegacyOrderTransformer` plugin.
Fixes#756
Related #821
