* Support W3C Baggage spec.
* Moved baggage propagation to its own ITextFormat. Removed IsInjected.
* updating some tests
* creating nw files
* updating files
* buildable in release
* adding baggage tests
* updating tests
* updating default textformat for http instrumentation
* Removed a few null checks.
* Removed DistributedContext. Drive CorrelationContext off of Activity.Baggage.
* updating issues after merge
* updating based on sanity check
* updating baggage test
* updating tests
* reiley's comments
* move to using
* Updates for http-in and http-out. Updated CHANGELOGs.
* Adding tests.
* updating correlation context
* Added test for TraceContextFormat + BaggageFormat used together.
* Fixed broken tests.
* Code review.
* Test fixup.
* updating order
* updating tests
* updating tests, adding dispose, clearing objects
* updating changelog
* Use "Baggage" instead of "baggage" as the header name.
* Added some basic support for the Baggage limits specified in the spec.
* Fixed and improved ITextFormat log messages.
* Rename TextFormatContext -> PropagationContext.
* Updated ITextFormat implementations so they don't double-extract.
Co-authored-by: Eddy Nakamura <ednakamu@microsoft.com>
Co-authored-by: Cijo Thomas <cithomas@microsoft.com>