Definition based extraction: Issue in the extension url using ProfileLoader

[vbothe23]

Describe the bug When using structure-definition-based-extraction with ProfileLoader, the extension URL in the resource should be same as it's profile URL, rather than the definition URL mentioned in the Questionnaire.

Component SDC library

To Reproduce Steps to reproduce the behavior:

1. Use below json as a questionnaire string.

{
         "resourceType": "Questionnaire",
         "extension": [
           {
             "url": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemExtractionContext",
             "valueExpression": {
               "language": "application/x-fhir-query",
               "expression": "Patient",
               "name": "patient"
             }
           }
         ],
         "item": [
           {
             "linkId": "1",
             "definition": "http://fhir.org/guides/who/core/StructureDefinition/who-patient#Patient.birthTime",
             "text": "Time of birth",
             "type": "dateTime"
           }
         ]
       }

2. Use below json as a questionnaireResponse string.

{
          "resourceType": "QuestionnaireResponse",
          "item": [
            {
              "linkId": "1",
              "answer": [
                {
                  "valueDateTime": "2022-02-07T13:28:17-05:00"
                }
              ]
            }
          ]
        }

3. Perform extraction using profileLoader.

ResourceMapper.extract(
        questionnaire = questionnaireWithBirthTimeExt,
        questionnaireResponse = questionnaireResponseWithBirthTimeExt,
        profileLoader = ProfileLoaderImplWithExt(mContext),
      )

Profile for Patient Birth-time extension

{
        "id": "Patient.extension:birthTime",
        "path": "Patient.extension",
        "sliceName": "birthTime",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/patient-birthTime"
            ]
          }
        ],
        "mustSupport": true
      }

Expected behavior Extracted Patient resource should contain the extension with URL http://hl7.org/fhir/StructureDefinition/patient-birthTime But URL in the extension is http://fhir.org/guides/who/core/StructureDefinition/who-patient#Patient.birthTime

Additional context https://fhir-ru.github.io/extension-patient-birthtime.html

[dubdabasoduba]

https://hl7.org/fhir/R4B/extension-patient-birthtime.html