Add Azure resource detector (#2728) #156

Job	Run time
build / build (windows-2022, /c/ProgramData/OpenTelemetry .NET AutoInstrumentation/logs)	16m 40s
build / build (ubuntu-20.04, /var/log/opentelemetry/dotnet)	8m 42s
build / build (macos-11, /var/log/opentelemetry/dotnet)	12m 49s
build-container / build-container (alpine, linux-musl)	6m 11s
build-container / build-container (centos, linux-glibc)	6m 42s
test-build-container (alpine, alpine, linux-musl)	12m 1s
test-build-container (centos, centos, linux-glibc)	10m 34s
test-build-container (debian, centos, linux-glibc)	11m 36s
test-build-native (windows-2022)	5m 38s
test-build-windows-container-tests (windows-2022, windows-only)	17m 57s
test-build-managed (net7.0, windows-2022)	13m 37s
test-build-managed (net7.0, ubuntu-20.04)	10m 25s
test-build-managed (net7.0, macos-11)	11m 3s
test-build-managed (net6.0, windows-2022)	12m 33s
test-build-managed (net6.0, ubuntu-20.04)	8m 32s
test-build-managed (net6.0, macos-11)	11m 14s
test-build-managed (net462, windows-2022)	12m 1s
build-nuget-packages / build-nuget-packages	8m 2s
test-nuget-packages (ubuntu-20.04)	3m 45s
test-nuget-packages (macos-11)	12m 25s
	3h 32m 27s

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