* DO NOT MERGE TO MASTER
Contains replication for validation location issue
* Don't let the validator mutate a cached result
* Revert filtering of ValidationTests
* WIP start ValidationResult equality implementation
* Move BaseWorkerContext testing to BaseWorkerContextTests
* A little more cleanup
* Code cleanup, and check that cached ValidationResult is a copy
* Complete ValidationResult equals method.
* Return null for all toCode enum params that are null
* Revert "Return null for all toCode enum params that are null"
This reverts commit 97a61b2ff9.
* Return null for all toCode enum params that are Enum.NULL
## Validator Changes
* No Changes
## Other code changes
* Naming System fix for THO
* Fix issue with rendering OperationOutcomes that don't have 'detail'
* Fix problem with value set anchor generation when rendering
***NO_CI***
## Validator Changes
* work around THO 6.0.0 problem (hack, to be reversed later)
* Improve MeasureReport validation for checking subject count
* Fix for R2B Resource.id cardinality problem
* Fix for validator using wrong property for list determination when parsing json
## Other code changes
* no changes
***NO_CI***
* Fix for validator using wrong property for list determination when parsing json
* Fix for R2B Resource.id cardinality problem
* Improve MeasureReport validation for checking subject count
* work around THO 6.0.0 problem (hack, to be reversed later)
* release notes
---------
Co-authored-by: Grahame Grieve <grahameg@gmail.ccom>
## Validator Changes
* Add clearer message for errors around unable to validate because unknown code system
* Fix problem with fhirVersion cardinality validating IG resources
## WHO I18n Project
* Remove Questionnaire.item.linkId from translatable content
## Other code changes
* Further revisions to rendering framework for id uniqueness, main spec rendering, and various reported issues
* Improve doco for R4/R4B renderers
* Introduce backwards compatible constructor in ValidationEngineBuilder and fix useEcosystem
* Use v2 of PublishCodeCoverageResults (#1665)
* #1583 do not serialize choice group + add testcase
***NO_CI***
caspears
Vassil Peytchev
dotasek
markiantorno
Grahame Grieve
Grahame Grieve
dotasek
Lloyd McKenzie