Release v4.2.0

[JohannesLipp]

Type of change: Release

Checklist:

• [x] Provide complete validation shapes for the new ontology terms; remove shapes for the old ones

Checklist for releases:

Before a release:

• [x] Update changelogs
• [x] Rerun ontology creation script (create-ontology-ttl.sh) with the version number of the release. E.g., create-ontology-ttl.sh 4.2.0
• [x] Update and validate the examples against the latest ontology version and SHACL shapes
• [x] Make sure that the manually authored parts of the documentation are in sync with the rest of the implementation and documentation
• [x] Check whether the IDS-G-pre documentation is up to date (please also fix #525 on the fly )
• [x] Check whether the IDS Information Model Readme.md is up to date

After a release:

• [ ] Generate human-readable documentation and single-file serializations using Widoco (cf. https://github.com/International-Data-Spaces-Association/InformationModel/tree/gh-pages/docs)
• [x] Generate Java library
• [ ] Update the message table