Add sample HQMF document that references the CQL definitions of IPP and NUMER
Add sample HQMF document that references the CQL definitions of IPP and NUMER

DBCG/cql_engine,wanghaisheng/clinical_quality_language-Research,MeasureAuthoringTool/clinical_quality_language,wanghaisheng/clinical_quality_language-Research,cqframework/clinical_quality_language,DBCG/cql_engine,MeasureAuthoringTool/clinical_quality_language,wanghaisheng/clinical_quality_language-Research,MeasureAuthoringTool/clinical_quality_language,cqframework/clinical_quality_language,MeasureAuthoringTool/clinical_quality_language