Feature: abort review

Description of change

• Picker tool selected by default
• wm.watch_review_start modal operator created to watch when a performed action means the review session has started, launched at startup.
• scene.abort_reviews operator created to load a .restore file created at the timeline loading and at the reviews linking.
  • operator added next to publish_reviews but it's maybe too much buttons in there. Maybe publish and abort could be in a menu on the top (where file common menu is placed)

Closes #226 (closed) #110 (closed)

How to test it

• Start Stax
• Draw
• Click on "Abort Reviews"

Checklist

Please check if your MR fulfills the following requirements:

• Unit tests have been added, if needed
• Documentation have been updated, if needed
• Build was run locally and any changes were pushed
• Lint has passed locally without error
• Package.py have been updated, if needed
• CHANGELOG.md have been updated, if needed
• Version numer has been tagged, if needed

FYI: @awesome_dev_too