MetaIssue: New Version OEMetadata 2.1

[Ludee]

Description of the issue

In order to be compatible with DataCite and CKAN/LDM, we need the predictable improvement of OEMetadata 2.0.4
The ongoing implementation of datasets on the OEP, where datasets are represented as structural elements of database tables, reveals structural limitations and schema misalignments that necessitate this revision.
Adding new modules for subdomains like Measurement data, Transport, Provenience, Processing

ISSUES

• Improve JSON-LD context #295
• Add creator to dataset level #293
• Check if our Dataset is valid agaist frictionless data "Package" #290
• The Data Package Logo in the documentation is broken #289
• Table schema: Foreign Key constrains information could be enhanced. #278
• Bounding box should allow "null" types as value #276
• Review metadata requirements from NFDI4Energy #222
• Add property for documentation of data transformation to sources #134
• Metadata Standard needs to be more modular #227

MODULES

• Add OEMetadata Module - Transportation Systems #297
• Add OEMetadata Module - Energy Systems #298
• Add OEMetadata Module - Measurement Data #299
• Add OEMetadata Module - Data Transformations & ERSMeta #300
• Add OEMetadata Module - Advanced Provenance #301

Workflow checklist

• I am aware of the workflow in CONTRIBUTING.md

[Ludee]

A first draft of the new version is here:
https://github.com/OpenEnergyPlatform/oemetadata/blob/feature-296-v210/oemetadata/v2/v21/metadata_key_description.md