This schematron schema checks the aqwuifer test XML encoding requirements of OGC GWML 2.2, as specified
in the requirements class: http://www.opengis.net/spec/gwml/2.2/req/aquifer-test-xsd
Test requirement: /req/aquifer-test-xsd/sampledfeatureThe test's sampledFeature must be a GW_HydrogeoUnit