Indeed,  the  generated  oracle  and daemons  were  not  syntactically
correct in such cases, e.g., if an action was named "I(p)".

Doc: Add some odoc generated html files to the rdbg section of the user guide

also, use (back) the odoc make rule now the image has been updated

Because currently, the docker image that  builds the pages via the CI
can not run odoc as it require a more recent dune version. It is because
this image used opam 1

using opam 2 would fix this. will do latter

Add the doc generation in the test to avoid such CI failueres in the future

Add use it to add an oracle to the BFS

The rationale is that
 - it is not always the cmxs that is necessary .e.g., rdbg uses .cma or .ml
 - it makes more sense to refer to the source code