New-AzImageBuilderTemplate needs to support vmProfile.userAssignedIdentity

[rcarde]

Description of the new feature

The ImageBuilder API version 2021-10-01 and newer supports adding a user assigned identity to the build VM itself to allow access to resources in the same tenant.

This is documented here: https://docs.microsoft.com/en-us/azure/virtual-machines/linux/image-builder-json#user-assigned-identity-for-the-image-builder-build-vm

Proposed implementation details (optional)

Add a -VMProfileUserAssignedIdentity parameter to provide a reference to an identity (or array of identities) used by the VM during running of customisations.

[dingmeng-xue]

We will evaluate and update module.

[BethanyZhou]

Will upgrade API version to 2022-02-14 and add a parameter named VMProfileUserAssignedIdentity to support this feature. Expected delivery date is 2022-09-06.

[BethanyZhou]

Please expect this feature supported Az.ImageBuilder 0.3.0. It will be available on Sept 6th.