Block volume snapshots

Changes to DELETE /v1beta/:tenantId/block/snapshots/:snapshotId

delete/v1beta/{tenantId}/block/snapshots/{snapshotId}

Dec 9, 2019b151718b45cf Revision changes
- info
  added the non-success response with the status
Nov 8, 2019fd0669e1e56f Revision changes
- info
  added the media type application/json for the response with the status
- info
  added the media type application/json for the response with the status
- info
  added the media type application/json for the response with the status
- info
  added the media type application/json for the response with the status