[FSunstone] Expose individual disk restores

[vichansson]

Description

Ability to select which disks should be included in a VM restore operation.

Use case Easily select one or multiple disks from a datatable when restoring a backup.

Interface Changes Add a new subtab Disks under the detailed container view in the Storage/Backups tab.

Additional Context This functionality has already been added in OpenNebula/one#6269. The plan is to add the DISK_IDS to the backup image's metadata. This way no additional API changes are needed in FireEdge.

Progress Status

• [ ] Code committed
• [ ] Testing - QA
• [ ] Documentation (Release notes - resolved issues, compatibility, known issues)