Practitoner parameter setting bug

[Capt-Mac]

When running r4 evaluate-measure operation while specifying "practitioner" parameter with an individual practitioner.id reference, evaluate measure is incorrectly updating resource type in front of the passed parameter, which causes getSubject logic to set it as a patient resource instead of practitioner.

This needs to be fixed here: https://github.com/cqframework/clinical-reasoning/blob/b23535668314f1349ca99bd0881fe770b72f62c9/cqf-fhir-cr/src/main/java/org/opencds/cqf/fhir/cr/measure/r4/R4MeasureService.java#L72

Steps:

1. post measure with patient dataset where referencing practitioner
2. run evaluate-measure like this : http://localhost:8000/Measure/ImmunizationStatus/$evaluate-measure?periodStart=2019-01-01&periodEnd=2019-12-31&reportType=population&practitioner=ImmunizationStatus-practitioner-1
3. This will throw an error saying can't find patient resource "Patient/ImmunizationStatus-practitioner-1"

Solution: replace subject setting with practitioner, where "Practitioner/" gets concatenated