Create a new or update an existing test passage segment.
| segmentID | Segment ID, supply to edit an existing test passage segment; otherwise, do not include when adding a new segment |
| name | Segment name (optional) |
| verse | Verse where this segment starts |
| contextDescription | Context to help the user know where exactly the segment is located, e.g., ειρηνη απο ... ο ων |