Add AzureVMResourceDetector

[Kielek]

We could also include AzureVMResourceDetector it's a part of same package.

Ref: https://github.com/open-telemetry/opentelemetry-dotnet-contrib/tree/main/src/OpenTelemetry.ResourceDetectors.Azure#vm-resource-detector

Originally posted by @rajkumar-rangaraj in
#2728 (comment)

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AzureVMResourceDetector is internally making a http call. Should it be allowed by automatically enabled resource detector?