Add integration for AzureContainerRegistry

[captainsafia]

As part of #8792, we added support for associating a compute environment with a registry. We want to extend this further by allowing users to model container registries as resources in the application. Something like the following.

var builder = DistributedApplicationBuilder.Create();

var registry = builder.AddAzureContainerRegistry("registry");

var cae = builder.AddAzureContainerAppEnvironment()
  .WithRegistry(registry);

• Figure out how to handle creating role assignments between the container apps and the ACR

[danmoseley]

@captainsafia are you planning to take this?

[captainsafia]

@danmoseley Yes, the first part of this has actually been merged in #9059.

I need to follow-up to see what:

Figure out how to handle creating role assignments between the container apps and the ACR

looks like based on the current design.

[captainsafia]

I'm going to go ahead and close this out. The identity related stuff gets coverage via #8441 and the new hosting integration has been created.