Reusable collection of procedures

In alignment with Biomedical Concepts, BC categories and C surrogates, it would be consistent to also have the collection of procedures at the study version level to allow for reuse across study designs in complex trials.
For example: Treatment administration (interventions are now also at study version level), hospital admission, discharge, CT scan, standing for vital signs etc.

No file, test, or entry point is named. Start by reviewing the study-version representation and the existing Biomedical Concepts, BC categories, C surrogates, and intervention structures; determine how reusable procedures should align with them. Done means the study-version model supports a reusable procedure collection for complex trial designs, with the listed examples represented consistently.

Written by the indexing model from the issue text.