cubicweb-medicalexp #3931623 Add start and end dates for study [validation pending]

prioritynormal
typebug
done in0.12.0
load0.100
load left0.000
closed by#be2131b9d6a9 [schema] Add study start and end dates, closes #3931623
patch[schema] Add study start and end dates, closes #3931623 [applied]