* Move trace API to otel
* Move tracetest to oteltest
* Update package documentation
* Remove old api/trace package
* Lint
* Add changes to CHANGELOG
* Add tests for rest of trace API
* Apply suggestions from code review
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Documentation fixes
Includes resolutions for review issues.
* Correct CHANGELOG post release
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
* Add new propagators package
* Move B3 propagator to propagators
Update all `api/trace` dependencies in the propagator.
Export the isDeferred and isDebug methods of the SpanContext. These are
needed by the B3 propagator to track trace state.
* Move W3C trace context propagator to propagators
* Update package docs with supported encodings
* Move unified propagators code to own file
* Update b3 exported documentation
* Update trace_context exported documentation
* Add code examples for B3 propagator
* Add TraceContext example code
* Remove internal package
Move common testing declarations to the propagators_test.go file.
* Add changes to Changelog
* Add test to check default propagators
