Issue-65: PIX query to correctly add fullUrl to the value reference of targetId in the PIXm response

[mherman22]

This intends to fix the targetId value pushed to parameters. Previously this wasn't doing anything but with this change, the ihe-pix request goes on as planned.

Fixes Issue: #19 and #65
@ashaban

[mherman22]

this is the how the json should look like with this change.

{
  "resourceType": "Parameters",
  "parameter": [
    {
      "name": "targetId",
      "valueReference": {
        "reference": "http://opencr-fhir:8080/fhir/Patient/0b18ae68-4dee-424a-9aff-7ebb8edc867a"
      }
    },
    {
      "name": "targetIdentifier",
      "valueIdentifier": {
        "system": "http://openelis-global.org/pat_nationalId",
        "value": "FB868943ERCV44"
      }
    },
    {
      "name": "targetIdentifier",
      "valueIdentifier": {
        "system": "http://openelis-global.org/pat_guid",
        "value": "28c41297-21fe-4970-a3b7-20802102762c"
      }
    },
    {
      "name": "targetIdentifier",
      "valueIdentifier": {
        "system": "http://openelis-global.org/pat_uuid",
        "value": "28c41297-21fe-4970-a3b7-20802102762c"
      }
    }
  ]
}

[mherman22]

https://profiles.ihe.net/ITI/PIXm/Parameters-pixm-response-mohralice-red-all.json.html