Use mapped IDs when passing chown IDpairs to createTarFile
Use mapped IDs when passing chown IDpairs to createTarFile

When we call createTarFile with a non-nil IDPair indicating that the
newly-created file should have its ownership changed, pass in IDs that
we've mapped back to host-level IDs.

Signed-off-by: Nalin Dahyabhai <f562fcb2a0b898bf0be1afc867ea92325d8f825f@redhat.com>

containers/storage,rhatdan/storage,rhatdan/storage,rhatdan/storage,containers/storage,containers/storage