Morph-kgc

This release features support for [language](https://w3id.org/rml/core/spec#language-tags-rml-languagemap-and-rml-language) and [datatype](https://w3id.org/rml/core/spec#typed-literals-rml-datatypemap-and-rml-datatype) maps, and connectors for neo4j and kuzudb.

Changes
- 164: Fixed bug where triples map with all term maps being constant-valued failed.
- 237: Support for language and datatype maps.
- 236: Adding helm support by LuciaCabanillasRodriguez.
- 248: Connectors for neo4j and kuzudb.
- 150: Reference formulation now overwrites data format inferred from file extension.
- 231 and 232: Minor YARRRML fixes.

This release features support for [Apache Kafka](https://kafka.apache.org/) which allows to materialize triples to a [Kafka](https://kafka.apache.org/) topic.

Changes
- 198: Support for [Apache Kafka](https://kafka.apache.org/) by LuciaCabanillasRodriguez.
- 199: sqlalchemy is now an optional dependency.
- 202: Bug in graph maps with YARRRML fixed.
- 214: Docs are now maintained in a separate repository (https://github.com/morph-kgc/morph-kgc-docs).
- 216: Test cases by kg-construct have been updated to their latest version.
- 218 219: Deprecation warnings fixed and upgrade of dependencies.
- 225: docker containerization by LuciaCabanillasRodriguez.

Acknowledgements

- **Horizon Europe aerOS**: Autonomous, scalablE, tRustworthy, intelligent European meta Operating System for the IoT edge-cloud continuum. Grant agreement 101069732.
- **SNS Horizon Europe ROBUST-6G**: Smart, Automated, and Reliable Security Service Platform for 6G. Grant agreement 101139068.
- **UNICO 5G I+D 6G-DATADRIVEN**: Redes de próxima generación (B5G y 6G) impulsadas por datos para la fabricación sostenible y la respuesta a emergencias. Ministerio de Asuntos Económicos y Transformación Digital. European Union NextGenerationEU.
- **UNICO 5G I+D 6G-CHRONOS**: Arquitectura asistida por IA para 5G-6G con red determinista para comunicaciones industriales. Ministerio de Asuntos Económicos y Transformación Digital. European Union NextGenerationEU.

This is a bug fix release. There are no new features.

This release upgrades to [Pandas](https://github.com/pandas-dev/pandas) 2.0 and fixes YARRRML bugs.

Changes
- 147: Upgrade to [Pandas](https://github.com/pandas-dev/pandas) 2.0 and to [SQLAlchemy](https://github.com/sqlalchemy/sqlalchemy) 2.0.
- 181, 184: YARRRML bug fixes.
- 150: Allow geojson file extension.

This is a bug fix release. There are no new features.

This is a bug fix release. There are no new features.

Changes

- 176: processing function maps defined in the subjects of YARRRML mappings.
- 177: correct output for deeply nested star maps with multiple predicate-object maps.