ADDED: PlDoc: when listing a file, predicates that are multifile and documented in multiple files provide a link that shows all definitions.
ADDED: PlDoc: when listing a file, predicates that are multifile and documented
in multiple files provide a link that shows all definitions.

Next step will be to provide proper links for the documentation fragments that
come from different locations.

jn7163/swipl-devel,koryonik/swipl-devel,edechter/swipl-devel,jn7163/swipl-devel,jn7163/swipl-devel,jn7163/swipl-devel,jn7163/swipl-devel,edechter/swipl-devel,mndrix/swipl-devel,koryonik/swipl-devel,edechter/swipl-devel,koryonik/swipl-devel,mndrix/swipl-devel,koryonik/swipl-devel,edechter/swipl-devel,koryonik/swipl-devel,edechter/swipl-devel,mndrix/swipl-devel,mndrix/swipl-devel,mndrix/swipl-devel