Add object properties "has aggregation type" and "has time stamp alignment" #1901

[madbkr]

Summary of the discussion

See #1901 I added the two object properties and changed the definition of time stamp. However I found it a bit hard to find out what the consensus of the discussion really was so double-checking the definitions would be helpful.

Type of change (CHANGELOG.md)

Add

• object properties "has aggregation type" and "has time stamp alignment"

Update

• definition of time stamp

Workflow checklist

Automation

Closes #1901

PR-Assignee

• [x] 🐙 Follow the Pull Request Workflow
• [x] 📝 Update the CHANGELOG.md
• [x] 📙 Add #'s to term tracker item

Reviewer

• [ ] 🐙 Follow the Reviewer Guide
• [ ] 🐙 Provided feedback and show sufficient appreciation for the work done

[madbkr]

@stap-m I applied all your suggested changes. Let me know if there is anything else before you can approve.