Tracking issue for GSP-86: Add CreateLink Operation

[Xuanwo]

• Rendered GSP

Steps

• Add CreateLink in definitions (definitions/operations.toml) definitions: Implement GSP-86 Add CreateLink #674
• Add linker integration tests (in https://github.com/beyondstorage/go-integration-test)
• Add virtual_link features (definitions/features.toml)

[abyss-w]

This issue can be assigned to me