R4: Fix Condition.verificationStatus Type

[alexanderkiel]

From R3 Diff:

• Type changed from code to CodeableConcept

Value generated in TransactionAndBatchTest is confirmed but should be a CodeableConcept.

http://test.fhir.org/r4 also gives an error here.

[arscan]

Thanks for this (and the other) reports! This one might take me a little while to get to because of how we are generating this resource (by fixing the R4 version we would break the previous versions). It is going to be a bit more involved to get right.

[alexanderkiel]

Thanks for fixing it in advance!