Request for new component: Baggage Span Processor

[MikeGoldsmith]

Is your feature request related to a problem? Please describe

The Honeycomb distro currently provides a Span processor that takes items from the baggage and adds those items as attributes onto spans.

Describe the solution you'd like to see

We'd like to donate this code upstream if there's an interest from the community, the code is pretty minimal:
https://github.com/honeycombio/honeycomb-opentelemetry-node/blob/main/src/baggage-span-processor.ts

Describe alternatives you've considered

Additional context

[trentm]

Sounds good to me.