Add Value External Reference

Signed-off-by: Alex Alzate <aalzate@sonatype.com>

Author: mr-zepol

src/main/java/org/cyclonedx/generators/json/BomJsonGenerator16.java

@@ -83,7 +83,10 @@ private void serializeXml(final ToXmlGenerator toXmlGenerator, final ExternalRef
         toXmlGenerator.writeFieldName("alg");
         toXmlGenerator.writeString(hash.getAlgorithm());
         toXmlGenerator.setNextIsAttribute(false);
-        //toXmlGenerator.writeString(hash.getValue());
+
+        toXmlGenerator.setNextIsUnwrapped(true);
+        toXmlGenerator.writeStringField("", hash.getValue());
+
         toXmlGenerator.writeEndObject();
       }
       toXmlGenerator.writeEndObject();