Changes to get a single kinship edge by its own id, with both sides' names resolved - used by /SuggestPersonRelationEdit/{relationId} to show what it's about

added the optional property person1/aliases to the response with the 200 status

added the optional property person2/aliases to the response with the 200 status

added the optional property evidence to the response with the 200 status

added the optional property person1/gender to the response with the 200 status

added the optional property person1/importance to the response with the 200 status

added the optional property person2/gender to the response with the 200 status

added the optional property person2/importance to the response with the 200 status

endpoint added