Per conversation with jgautier stipped the '@type="person"' attribute…

… in the author fragment;

since it can be a person or an organization; this results in a warning from google validation tool
(because "Thing" is not supposed to have an affiliation) but it appears to be ok to live with it.

src/main/java/edu/harvard/iq/dataverse/DatasetVersion.java

@@ -1243,7 +1243,7 @@ public String getJsonLd() {
             String name = datasetAuthor.getName().getValue();
             String affiliation = datasetAuthor.getAffiliation().getValue();
             // We are aware of "givenName" and "familyName" but instead of a person it might be an organization such as "Gallup Organization".
-            author.add("@type", "Person");
+            //author.add("@type", "Person");
             author.add("name", name);
             if (!StringUtil.isEmpty(affiliation)) {
                 author.add("affiliation", affiliation);