Add timecourse module to specimen

[idazucchi]

For which schema is a change/update being suggested?
biomaterial_core.json
or at least
specimen_from_organism.json and imaged_specimen.json

What should the change/update be?
I would like to add a the timecourse module to this biomaterial.

This update constitutes a minor change to the schema(s) it affects.

What new field(s) need to be changed/added?

"timecourse": {
 "description": "Information relating to a timecourse associated with this specimen.",
 "type": "object",
            "$ref": "module/biomaterial/timecourse.json",
            "user_friendly": "Timecourse"
        }

Why is the change requested?

Adding timecourse in to the specimen would allow data contributors to capture timecourse relevant events in a structured way. For example it could be used to describe different time intervals at which samples were taken from the same donor in the context of disease progression/treatment.