Keyvault: Create key via importing - BYOK preview

[yungezz]

Resource Provider
What is the Azure resource provider your feature is part of?
Keyvault

Description of Feature or Work Requested
Provide a brief description of the feature or work requested. A link to conceptual documentation may be helpful too.
To support create key via importing. such as
az keyvault key create --vault-name bim-kv6 --name mykek --kty RSA-HSM --size 2048 --ops import

Minimum API Version Required
What is the minimum API version of your service required to implement your feature?

Swagger Link
Provide a link to the location of your feature(s) in the REST API specs repo. If your feature(s) has corresponding commit or pull request in the REST API specs repo, provide them. This should be on the master branch of the REST API specs repo.
https://github.com/Azure/azure-rest-api-specs/pull/8175/files

Target Date
If you have a target date for release of this feature/work, please provide it. While we can't guarantee these dates,
it will help us prioritize your request against other requests.

[yonzhan]

Keyvault BYOK

[yungezz]

Keyvault BYOK

? :)

[bim-msft]

Supported in PR: #12030
This feature is only supported on canary regions (region with suffix euap, like eastus2euap)