Add spatial and temporal to dataset #309

[Ludee]

Summary of the discussion

• Add spatial information to dataset
• Add temporal information to dataset
• Remove topics from dataset

Type of change (CHANGELOG.md)

Added

• Add spatial information to dataset (#310)
• Add temporal information to dataset (#310)

Removed

Workflow checklist

Automation

Closes #309

PR-Assignee

• 🐙 Follow the workflow in CONTRIBUTING.md
• 📝 Update the CHANGELOG.md
• 📙 Update the documentation
• 🐙 Assign a reviewer to the PR

Reviewer

• 🐙 Follow the Reviewer Guidelines
• 🐙 Provided feedback and show sufficient appreciation for the work done

[jh-RLI]

I approve, as it looks correct to me. I wasn't aware that we would remove the topics completely. I used that field in some scripts, but this does not mean i strongly want to keep it. In general we should harmonize the OEP topics with the subjects at some point.

[Ludee]

You are right, I thought I remove it from the dataset but deleted it from resource.
I added the topics again since it is needed for the OEP.
The resources have 3 different classification systems:

• topics (fix set of database schemas)
• subject (ontology terms, structured but extendable)
• keywords (user chaos)