Titanic Java ML Lesson Gamification & Error Handling on bathroom pass

[Rbojja23]

Added three new activities on the titanic java machine learning lesson:

1. Point system to decide survivors and perishers
2. Ordering steps -> leads to titanic collision with iceberg
3. Terminal line question answer which leads to fun image of the titanic in command line art

Bathroom pass better error handling if initial facial registration was unsuccessful