Refactor to reduce copy/paste in SQL code

These lines are duplicated in non-reactive repository:

eventuate-tram-sagas/eventuate-tram-sagas-reactive-orchestration/src/main/java/io/eventuate/tram/sagas/reactive/orchestration/ReactiveSagaInstanceRepositoryJdbc.java

Lines 46 to 53 in 536389b

    
           sagaInstance.getSagaType(), 
        
           sagaInstance.getId(), 
        
           sagaInstance.getStateName(), 
        
           sagaInstance.getLastRequestId(), 
        
           sagaInstance.getSerializedSagaData().getSagaDataType(), 
        
           sagaInstance.getSerializedSagaData().getSagaDataJSON(), 
        
           sagaInstance.isEndState(), 
        
           sagaInstance.isCompensating())

Consider moving into SagaInstanceRepositorySql and renaming it to ...Mapper.

	sagaInstance.getSagaType(),
	sagaInstance.getId(),
	sagaInstance.getStateName(),
	sagaInstance.getLastRequestId(),
	sagaInstance.getSerializedSagaData().getSagaDataType(),
	sagaInstance.getSerializedSagaData().getSagaDataJSON(),
	sagaInstance.isEndState(),
	sagaInstance.isCompensating())