feat/56-property-commands

[pogi7]

Checklist before submitting a merge request

• [x] I have reviewed CONTRIBUTING.md document
• [x] All commits have been signed-off for the Developer Certificate of Origin. See here.
• [x] I have added my contribution to CHANGELOG.md
• [x] I have documented my code in the OML Vision Docs

Description of contribution

This feature allows users to add custom commands (SPARQL queries) and run these commands in the property sheet view.

closes #56

Testing performed

• [x] I have added unit tests to cover additional functionality (backend only, frontend tests still need to be added)

How to Test Expected functionality changes

1. Go to https://github.com/pogi7/kepler16b-example
2. Switch to main branch
3. Run git pull
4. From the command line run ./gradlew load
5. Wait for that command to finish
6. Open the Objectives webview
7. Click the OML Vision Properties panel
8. Click on any row to select the row then right click the selected row
9. From the property view update the Label of the row to TEST and press Enter on your keyboard
10. You should see the table update
11. From the command line run ./gradlew save
12. You should see the objectives.oml file change. You can run git status to verify.

Additional context

[If needed, you may add additional context]

[pogi7]

Closed due to incorrect git commit sign off. Correct PR https://github.com/opencaesar/oml-vision/pull/58