Added EligibilityCriteriaDataDefinition and evaluator
Completed a unified eligibility approach for art and pre-art registers
Added test for ArtTransferStatus evaluator
Changed logic in  the evaluator. results.replace could wipe out all data
Finalized tests for integrated evaluator
Merge branch 'REPORTS-540' of https://github.com/ojwanganto/openmrs-module-amrsreports into ojwanganto-REPORTS-540