discrepancy in return types with uima-stream-server

[tmills]

Looks like the Interface UIMA-Stream-Server/UIMA-Server-Core/src/main/java/edu/mayo/dhs/uima/server/api/UIMANLPResultSerializer.java

has been updated so the return type of serializeNLPResult is JsonNode.

The implementation in this project at:
NLP2FHIR-STREAM/src/main/java/edu/mayo/bsi/nlp2fhir/stream/NLP2FHIRResourceBundleSerializer.java

has the return type Serializable. There isn't a version number change so it's a little difficult to roll back but I will try to git co an older version of UIMA-Stream-Server as a workaround for now.