[PATCH RESEND v3 00/10] Support generic Luks encryption

v3: - Rebase on master - Add a test case for detached LUKS header - Adjust the design to honour preallocation of the payload device - Adjust the design to honour the payload offset from the header, even when detached - Support detached LUKS header creation using qemu-img - Support detached LUKS h

[v3 00/10] Support generic Luks encryption

v3: - Rebase on master - Add a test case for detached LUKS header - Adjust the design to honour preallocation of the payload device - Adjust the design to honour the payload offset from the header, even when detached - Support detached LUKS header creation using qemu-img - Support detached LUKS h