public void TestFhirCorePackageFromFhirVersion()
 {
     Assert.AreEqual("hl7.fhir.r3.core", FhirReleaseParser.CorePackageNameFromFhirRelease(FhirRelease.STU3));
     Assert.AreEqual("hl7.fhir.r4.core", FhirReleaseParser.CorePackageNameFromFhirRelease(FhirRelease.R4));
     Assert.AreEqual("hl7.fhir.r5.core", FhirReleaseParser.CorePackageNameFromFhirRelease(FhirRelease.R5));
 }