The `VIEWLAYER_PT_eevee_next_layer_passes_data` class name was
re-used by mistake for Workbench Next in ba982119cd,
and the actual EEVEE Next class was then removed in 678dc456e3.
This adds back the UI as it was, and the missing passes (Vector and
Position) it referenced.
Pull Request: https://projects.blender.org/blender/blender/pulls/112162