Minigames for Attentiveness

[sirexeclp]

As annotation provider i want to check the attentiveness of annotators without disturbing them more than necessary.

Acceptance Criteria

• [ ] implement two attentiveness mini-games
  • [ ] game1
  • [ ] game2
• [ ] configurable attentiveness threshold (research)
• [ ] present images a second time to check consistency
• [ ] present known images to check correctness