Add a new input parameter to $expand and $validate-code ValueSet operations Name:  useSupplement Cardinality: 0..* Type: canonical Documentation for the $expand parameter:  The supplement must be used when performing an expansion. Use of this parameter should result in $expand behaving the same way as if the supplements were included in the value set definition using   http://hl7.org/fhir/StructureDefinition/valueset-supplement   Documentation for the $validate-code parameter: The supplement must be used when validating the code. Use of this parameter should result in $validate-code behaving the same way as if the supplements were included in the value set definition using   http://hl7.org/fhir/StructureDefinition/valueset-supplement