Question Bank Digital Infrastructure
We introduced Question & Question Set objects along with QuML specification (Project inQuiry) as part of the Question Bank Digital Infrastructure in Sunbird
https://docs.google.com/presentation/d/1ZVj7HEideforroJJJt2JCgH77by0blVgrI1aYoEPC6A/edit#slide=id.ga7ecb044cd_0_414
https://github.com/Sunbird-Ed/sunbird-collection-editor
Not used after 3.9 → Sunbird-Ed/sunbird-questionset-editor (github.com)