Subimage tracking is done per layer, but workbench depth of field
required to track per mipmap level. This PR refactors sub image tracking
and implements tracking the state per mipmap level to ensure that
the correct pipeline barriers can be generated.
Most platforms wouldn't show any artifacts as the pixel layouts are the
same, but there it is a violation of the spec.
Pull Request: https://projects.blender.org/blender/blender/pulls/147207
29e3785c51