Add area 4 functionality to master branch
This merge request contains basic functionality for the 4th room:
- room4.wbt in the worlds folder is a sample world with all 4 rooms
- Scoring victims in 4th room works with a 2 times multiplier (temporary, will change when rules decided)
- Creating maps with a 4th room works (see rcj-rescue-scoring repo)
- Can create new instances of a 4th room, but takes a bit to learn how to do (currently, must select a pre-made room 4)
- For now, 2 checkpoints placed directly in room 4 upon entry (temporary, will change when rules decided)
- Will send video explaining implementation of 4th rooms in Slack