Update: Include associated contentObjects with cmi.interactions.n.objectives

[danielghost]

Fixes #331.

Update

• Include associated contentObjects for recorded interactions via cmi.interactions.n.objectives.

[cahirodoherty-learningpool]

👀

[oliverfoster]

As discussed on call.

1. Remove dependency on adapt.scoring by having plugins register their applicable objectives onto the questionmodel before recordInteraction. Spoor can then pick up the objectives from the question model
2. When registering course-wide objectives, extensions should register all objectives initially and use completion_status to indicate their applicability later

This allows the objectives to be derived and attached at appropriate times with meaningful reported states.

Question objectives as follow:

• Add api to questionmodel to add and keep objectives
• Move questionView recordinteraction to after the submitted event https://github.com/adaptlearning/adapt-contrib-core/blob/master/js/views/questionView.js#L214
• Use the submitted event for plugins (adapt-scoring) to register their applicable objectives onto the question model
• Use recordinteraction in spoor to pass the question model objectives to the scorm 2004 api
• Restore objectives to questionmodels if loaded submitted

Course-wide objective completion_status as follows:

Status	Required	Started	Finished	Description
completed	Y	Y	Y	Is required, has been started and finished
incomplete	Y	Y	N	Is required, has been started but not finished
not attempted	Y	N	N	Is required, has not been started
unknown	N	N	N	Is not required

Following scorm 2004 rte:
https://github.com/adaptlearning/scorm_docs/tree/master/SCORM%202004/4th%20Edition