Draft: Feature/remodel crc dataset
This PR is an attempt to model all of the experiment data within one work.
To Do
- Add rspec for crc dataset
- session and modality complex model rspec
- session and modality complex indexer rspec
- New validation for complex subject - modify rspec (all fields should exist)
- complex attributes actor rspec (example code)
- Add rspec to see if it's possible to add 100 subjects, 1000 sessions and 2000 modalities (for example)