Try out SDK v6.0.0-alpha2 in the Validator API

[mmsmits]

[andrzejskowronski]

Unit tests not passing need changes that are implemented in next versions, and implementation of pluggable unit conversions

[Kasdejong]

comments:

• instance types are not preserved when the PocoBuilder makes an educated guess. Could easily be circumvented by making the unit tests not depend on the PocoBuilder (I.E. creating a dynamic primitive directly instead of building a primitive from a primitive element node)
• the resource resolver on PocoNode does a hard check against DomainResource to see if we can resolve contained references. this does not work for dynamic resources. We should consider checking if the resource has a field called "contained" in the overflow if it is a dynamic resource, or doing this check earlier and introducing a DynamicDomainResource (the former sounds cleaner)
• the poco builder does not seem to add "extra" fields to overflow (for instance, when a typed element contains multiple of the same, non-repeating element)
• poco deep copy/copy to methods touch the overflow and initialize it. This makes unit tests which rely on the HasOverflow field fail (since the overflow, while empty, is still initialized).
• Fhir.Packages does not yet fully support SDK 6

[Kasdejong]

for the issue (WIP) on USING SDK-6 features, refer to FirelyTeam/firely-validator-api#500

[Kasdejong]

reopened. This needs a review on the PR (FirelyTeam/firely-validator-api#509)

[Kasdejong]

The new positionInformation fails on PocoNode, since PocoNode does not propagate the annotations from its internal poco to the node. See #3162