small fix to statusCode value for PIXv3 newly added patient

This was reported by an EU Connectathon participant:


According to PIXv3 documentation, statusCode for a new (added) patient should be ‘active’, but Gazelle expects it to be ‘new’. Please see:
 
IHE IT Infrastructure Technical Framework, Volume 2b (ITI TF-2b): Transactions Part B,
Table 3.44.4.1.2-1: Model Attributes
 
statusCode [1..1]
Patient (CS) {CNE:active, fixed value= “active"}