Add BaggageSpanProcessor to populate baggage attributes into OTel spans#391

mxiamxia merged 4 commits intoaws-observability:mainaws-observability/aws-otel-python-instrumentation:mainfrom

mxiamxia:genesis_baggage_supportmxiamxia/aws-otel-python-instrumentation:genesis_baggage_supportCopy head branch name to clipboard