Provide distinctSubjects and distinctObjects for propertyPartition that are linked to classPartitions

[vemonet]

Right now distinctSubjects and distinctObjects are calculated only for propertyPartition that are not linked to classPartitions

Imo the most interesting info would be that in this endpoint there is, for example, 1000 distinct Pathways isPartOf 500 distinct AnatomicalEntities

This could be retrieved this way:

PREFIX up: <http://purl.uniprot.org/core/>
PREFIX void: <http://rdfs.org/ns/void#>
PREFIX void-ext: <http://ldf.fi/void-ext#>

SELECT DISTINCT ?subjectCount ?subjectClass ?prop ?objectClass ?objectCount ?objectDatatype
WHERE {
  {
    ?cp void:class ?subjectClass ;
        void:propertyPartition ?pp .
    ?pp void:property ?prop ;
        void:distinctSubjects ?subjectCount ;
        void:distinctObjects ?objectCount .
    OPTIONAL {
        {
            ?pp  void:classPartition [ void:class ?objectClass ] .
        	
        } UNION {
            ?pp void-ext:datatypePartition [ void-ext:datatype ?objectDatatype ] .
        }
    }
  } UNION {
    ?linkset void:subjectsTarget [ void:class ?subjectClass ] ;
      void:linkPredicate ?prop ;
      void:objectsTarget [ void:class ?objectClass ] .
  }
}

I could look into adding this if necessary @JervenBolleman let me know