Request for new component: Baggage Span Processor

[MikeGoldsmith]

Is your feature request related to a problem?
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
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-python/blob/main/src/honeycomb/opentelemetry/baggage.py

Describe alternatives you've considered
Which alternative solutions or features have you considered?

Additional context
Add any other context about the feature request here.