GET /v2/images/<IMAGE_ID>/file
Request body ignored.
Response body will be the raw binary data that represents the actual virtual disk. The Content-Type header will be 'application/octet-stream'.
The Content-MD5 header will contain an MD5 checksum of the image data. Clients are encouraged to verify the integrity of the image data they receive using this checksum.
If no image data has been stored, an HTTP status of 204 will be returned.
