odoc

Correct argument name in sherlodoc test Older versions of cmdliner silently accepted this as what was there was a prefix of the correct argument name. Newer versions of cmdliner are more strict.

OxCaml: fix CI opam-repo for dune.3.22

OxCaml: fix OCaml CI, ignore recent_impl test

OxCaml: Support for modalities

Update ROADMAP.md

Better names, structure and types

Add OxCaml implementation file test This adds a file that contains just an implementation, without an interface, to show how OxCaml code is rendered.

Update GHA build matrix Lower bound is now 4.11. Bumped macos latest to 5.4. Keeping ubuntu latest on 5.3 as bisect_ppx is unavailable for 5.4