[FEATURE REQ] Add support for ACR Import

[MichaelSimons]

The Microsoft.Azure.Management.ContainerRegistry API does not appear to have support for the Import API. As a result users who would like to invoke this functionality are forced to utilize the Inner API (e.g. azure.ContainerRegistries.Inner.ImportImageAsync). My understanding is that the Inner API is not recommended since it is not guaranteed to be backward compatible from one version of the SDK to the next.

[kurtzeborn]

Thank you for opening this issue! We are routing it to the appropriate team for follow up.

[sajayantony]

@ankurkhemani - With your updated SDK is this now available?
/cc @adewaleo

[ankurkhemani]

Yes, the latest .NET SDK for ACR has the import APIS.
Microsoft.Azure.Management.ContainerRegistry 4.0.0

[yaohaizh]

@weidongxu-microsoft Could you help take a look at this issue for the fluent side:

• Whether we have supported this feature in the fluent libs.
• Follow up with the PR is needed: [DO NOT MERGE] ACI: MSI Update #714