Implement `OxidizedPkgResourcesProvider.get_resource_filename()` so `pkg_resources.resource_filename()` works

I'm filing this issue as a placeholder to track implementing `OxidizedPkgResourcesProvider.get_resource_filename()` so `pkg_resources.resource_filename()` works.

If you would like this feature implemented, please leave a comment below. If possible, include the name of the Python package (ideally with a link to the source code or run-time traceback output) requiring this functionality.

Start by locating OxidizedPkgResourcesProvider.get_resource_filename() and reviewing how pkg_resources.resource_filename() is expected to behave for packages requiring this functionality. Use the reported Python package or runtime traceback from a future comment to define the required behavior; done means pkg_resources.resource_filename() works for that case.

Written by the indexing model from the issue text.