azure-powershell Draft: Confidential VM features in VM and Disk cmdlets

Description

This PR adds the Confidential VM functionality to the cmdlets:

Set-AzVMOSDisk
New-AzDiskEncryptionSetConfig
Set-AzDiskSecurityProfile
Set-AzVmSecurityProfile
Set-AzVmssSecurityProfile
Set-AzVmssStorageProfile

The SecurityType parameter was either added or expanded to use the 'Trusted Launch' value, and other related functionality to use a Disk Encryption Set with a Trusted Launch VM.

Checklist

[ ] I have read the Submitting Changes section of CONTRIBUTING.md
[ ] The title of the PR is clear and informative
[ ] The appropriate ChangeLog.md file(s) has been updated:
- For any service, the ChangeLog.md file can be found at src/{{SERVICE}}/{{SERVICE}}/ChangeLog.md
- A snippet outlining the change(s) made in the PR should be written under the ## Upcoming Release header -- no new version header should be added
[ ] The PR does not introduce breaking changes
[ ] If applicable, the changes made in the PR have proper test coverage
[ ] For public API changes to cmdlets:
- [ ] a cmdlet design review was approved for the changes in this repository (Microsoft internal only)
  - https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/1187
  - https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/1140
  - https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/1138
  - https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/1136
  - https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/1137
  - https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/1197
- [ ] the markdown help files have been regenerated using the commands listed here

May 10 '22 19:05 Sandido

Hi @Sandido, as this draft PR hasn't been taken care of for long, could you please check and close it? Thanks!

Aug 18 '22 02:08 NoriZC

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