Verify generated attributes match Java distro

[MikeGoldsmith]

See honeycombio/honeycomb-opentelemetry-java#148 for attribute list.

[cartermp]

Took a brief look at this. As far as I can tell, there isn't an analogue to OsResource and ProcessRuntimeResource in .NET like there is in Java: https://github.com/open-telemetry/opentelemetry-dotnet/tree/main/src/OpenTelemetry/Resources

So we can build this and attach them to our own resources in the interim I suppose?

[cartermp]

Hahaha, hoo boy. So! There are standard methods for determining things like this in .NET, like this one: https://docs.microsoft.com/en-us/dotnet/api/system.operatingsystem.ismacos?view=net-6.0&viewFallbackFrom=netstandard-2.1

But as you can see, they're not available with .NET Standard or the legacy .NET Framework. So getting parity with Java will be more involved.

[cartermp]

Another tidbit: the runtime resources for .NET are not confirmed as specified yet: open-telemetry/opentelemetry-dotnet#1281

(there's an entry in the spec but it's marked as a TODO)