Gelreportmodels

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Minor Changes

* Transaction.avdl `TransactionStatus` having two new states `PROCESSING` and `PERSISTING`
* Transaction.avdl `TransactionStatus` has one less state `APPLIED`

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Major changes

* Remove hotfix version numbering from build version from 6.0 onwards. To generate any mock data from build 6.0 onwards, the string `6.0` is expected instead of `6.0.0`


Minor Changes

* Fixed `MigrateReports400To500().migrate_cancer_interpretation_request` and `MigrateReports400To500().migrate_interpretation_request_rd` that were failing when tested with nullable fields being null. Tests are improved
* Refactored migration tests to use `_validate`

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Minor Changes

* Migration of participants fixed for field `ageOfOnset`

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Major Changes

* Exit questionnaire models have been updated with some changes that were lost back in the day merging `develop` and `master` branches.

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Major Changes

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* org.gel.models.cva.avro 0.4.0
* First released version of CVA models
* org.gel.models.report.avro 4.2.0
* ClinicalReportCancer refactored
* ReportedVariantCancer refactored
* CancerExitQuestionnaire
* InterpretationRequestCancer refactored
* InterpretedGenomeCancer refactored
* org.gel.models.system.avro 0.1.0
* First version of the model to hold results from health checks