The apimachinery code path, in its final marshalling
for output, calls Marshall
https://github.com/go-yaml/yaml/blob/v2/yaml.go#L199
This code path (via apimachinery Unstructured types)
has no JSON schema tags
https://yaml.org/spec/1.2/spec.html#id2803311
so it adds quotes to values that smell like
booleans and ints (e.g. `false` becomes `"false"`).
The kyaml code path, OTOH, uses such tags,
so generally does not quote ints and booleans.
This PR isolates this difference in behavior to
one set of tests (using data fields in configmaps
in api/krusty/configmaps_test.go) so that
they don't confuse other tests that cover
completely different behaviors.
