Pathling

<!-- Release notes generated using configuration in .github/release.yml at v6.1.3 -->

What's Changed
Bug fixes
* Removing JSR-380 validation dependency on EL implementation. by piotrszul in https://github.com/aehrc/pathling/pull/1195
* Add IdleConnectionEvictor to guard against terminology server closing connections by johngrimes in https://github.com/aehrc/pathling/pull/1204


**Full Changelog**: https://github.com/aehrc/pathling/compare/v6.1.1...v6.1.3

<!-- Release notes generated using configuration in .github/release.yml at v6.1.1 -->

What's Changed
Bug fixes
* Remove logging_level parameter and improve documentation by johngrimes in https://github.com/aehrc/pathling/pull/1186
* Ensure that Pathling git.properties takes precedence over Spark environment by johngrimes in https://github.com/aehrc/pathling/pull/1189

**Full Changelog**: https://github.com/aehrc/pathling/compare/v6.1.0...v6.1.1

<!-- Release notes generated using configuration in .github/release.yml at v6.1.0 -->

Check out the documentation for the new property and designation functionality:

- [Library - retrieving properties](https://pathling.csiro.au/docs/libraries/terminology#retrieving-properties)
- [Library - retrieving designations](https://pathling.csiro.au/docs/libraries/terminology#retrieving-designations)
- [FHIRPath function - property](https://pathling.csiro.au/docs/fhirpath/functions#property)
- [FHIRPath function - designation](https://pathling.csiro.au/docs/fhirpath/functions#designation)
- [FHIRPath function - display](https://pathling.csiro.au/docs/fhirpath/functions#display)

And also the new configuration options for terminology caching:

- [Python library - PathlingContext](https://pathling.csiro.au/docs/python/pathling.html#pathling.context.PathlingContext)
- [Server configuration - terminology service cache](https://pathling.csiro.au/docs/server/configuration#cache)

What's Changed
New features
* Implement 'property' FHIRPath function and UDF by piotrszul in https://github.com/aehrc/pathling/pull/1123
* Implement 'designation' FHIRPath function and UDF by piotrszul in https://github.com/aehrc/pathling/pull/1132
* Client-side terminology caching and optimisation by johngrimes in https://github.com/aehrc/pathling/pull/1126
* Implement target parameter on translate function by johngrimes in https://github.com/aehrc/pathling/pull/1041
Bug fixes
* Handle resolution of polymorphic Reference-typed extensions by johngrimes in https://github.com/aehrc/pathling/pull/1143

**Full Changelog**: https://github.com/aehrc/pathling/compare/v6.0.4...v6.1.0

<!-- Release notes generated using configuration in .github/release.yml at v6.0.4 -->

What's Changed
Bug fixes
* Apply the same exception reporting rules for async requests as the synchronous ones. by piotrszul in https://github.com/aehrc/pathling/pull/1049


**Full Changelog**: https://github.com/aehrc/pathling/compare/v6.0.3...v6.0.4

<!-- Release notes generated using configuration in .github/release.yml at v6.0.3 -->

What's Changed
Bug fixes
* Fix comparison and arithmetic operations for instants by johngrimes in https://github.com/aehrc/pathling/pull/1029


**Full Changelog**: https://github.com/aehrc/pathling/compare/v6.0.2...v6.0.3

<!-- Release notes generated using configuration in .github/release.yml at v6.0.2 -->

What's Changed
Bug fixes
* Create a release version of the modified UCUM library, and use it by johngrimes in https://github.com/aehrc/pathling/pull/1004


**Full Changelog**: https://github.com/aehrc/pathling/compare/v6.0.1...v6.0.2