- Remove false Error log when working in hybrid mode
  https://discourse.orthanc-server.org/t/object-storage-hybrid-mode/5218

- Investigate use of soft-delete with Google Cloud Storage
  https://discourse.orthanc-server.org/t/object-storage-hybrid-mode/5218/7

- Test serialize/unserialize MoveStorageJob

- /move-storage shall also move the attachments at
  Study/Series/Patient level, not only the Instances

- in Hybrid mode, add a Rest API method to know where the files are stored.
  https://discourse.orthanc-server.org/t/the-question-about-migrating-to-object-storage/4841/4

- Test against AWS S3 Glacier:
  https://groups.google.com/g/orthanc-users/c/CT1lkzHLAUg/m/h75HuXYpBwAJ

- AWS: use the latest aws S3-crt client ?
  https://github.com/aws/aws-sdk-cpp/wiki/Improving-S3-Throughput-with-AWS-SDK-for-CPP-v1.9