[new release] wayland (2.1)
CHANGES:
- Add relative-pointer-v1 (@Mic92 talex5/ocaml-wayland#40).
- Add pointer-constraints-unstable-v1 (@Mic92 talex5/ocaml-wayland#41).
- Update protocols to latest versions (@talex5 talex5/ocaml-wayland#43).
- Cope with interfaces that are always v1 (@talex5 talex5/ocaml-wayland#44).