Adding 2.1 test xml fixtures
Add 93 EP/EH measures in HQMFr1 format to the test fixtures, along with script for extracting them from a bundle.
Add test case that loads hqmf_r1 measures, generates hqmf_r2.1 measures, and validates against hqmf_r2.1 scheam
Update hqmf_r2.1 test to report on highest frequency errors
hqmf_r2.1: replace observationReference with criteriaReference in templates
hqmf_r2.1: id should not have a nested item element
hqmf_r2.1: replace encounterReference with criteriaReference in templates
hqmf_r2.1: do not generate 'type' attribute in pauseQuantity
hqmf_r2.1: replace procedureReference with criteriaReference in templates
Updated measurement period and associated range type
Added new variable types to json criteria
Merge branch 'hqmf_r2.1' of https://github.com/projectcypress/health-data-standards into hqmf_r2.1
hqmf_r2.1: Generate child 'uncertainRange' element for 'pauseQuantity'
fix invalid xml in measurePeriod template
hqmf_r2.1: Replace substanceAdministrationReference with criteriaReference in templates.
hqmf_2.1: use 'criteriaReference' in the generic reference templates
hqmf_r2.1: replace 'supplyReference' with 'criteriaReference' in templates.
hqml_r2.1: Move 'isCriterionInd' from child to attribute in template
Fix copy paste bug that caused generaton of 'criteriaReferenceReference'
hqmf_r2.1: move 'text' contents to 'value' attribute in document template