[Tracker] : Breaking Changes in API

[shubham-cmyk]

A tracker to collect the breaking changes in API's in the next major release.

• resource -> check in https://github.com/kyverno/chainsaw/blob/b01fe35c698d50c78fed66543de12a01f63d80c5/pkg/apis/v1alpha1/file_ref_or_check.go#L11
• namespace -> change to a struct https://github.com/kyverno/chainsaw/blob/3f8124483e043f1c123a68595fa0c5dcfde749b0/pkg/apis/v1alpha1/test_spec.go#L31
• add metadata to mimick structure of an object https://github.com/kyverno/chainsaw/blob/3f8124483e043f1c123a68595fa0c5dcfde749b0/pkg/apis/v1alpha1/object_reference.go#L8
• ~~separate test and config in two different groups~~
• rename podLogs -> logs
• ~~group report fields~~
• ~~remove TestStep CRD~~
• ~~support file in delete~~