[Not Accepted] Add Amazon Glacier Instant Retrieval class (GLACIER_IR) to S3 Cloud Sync options

Problem/Justification
The Glacier Instant Retrieval storage class (GLACIER_IR) is not a selectable option in the Cloud Sync Task for Amazon S3. This is supported with command-line rclone

Impact
Users who use the S3 Glacier Instant Retrieval class can now back up directly from TrueNAS. (Users should be aware of AWS incurred server-side costs such as per-object metadata overhead, minimum billable object size, and minimum retention times.)

User Story
See user discussion at: Glacier Instant Retrieval AWS S3 Storage Class Unavailable

Thank you for submitting this feature request. After keeping it open to gauge community interest, we’re closing it as it hasn’t received enough votes to prioritize for development.