Add bulk configure AMD SEV script for VMs

[coelacant1]

Description

There is no script to bulk configure AMD Secure Encrypted Virtualization (SEV) on VMs. AMD SEV encrypts VM memory to protect against physical access attacks. Operators running AMD EPYC hardware need to enable and configure SEV across VM fleets for security compliance.

A new script should be added under VirtualMachines/Options/ or Security/.

Acceptance Criteria

• New bulk AMD SEV configuration script created
• Supports enabling/disabling AMD SEV on a VM ID range
• Supports SEV-ES (Encrypted State) option where available
• Validates host CPU supports SEV before applying
• Uses ArgumentParser.sh for argument handling