* Remove Vendor constants from tracing plugins
Unused. And confusing, since "ot" may mean "opentracing" as well.
* Simplify current span key declaration
No need for a block.
* Fix typo
Co-authored-by: Joshua MacDonald <jmacd@users.noreply.github.com>
* Move scope.Active to trace.CurrentSpan
* Remove scope / does not build
* Global tracer
* Checkpoint
* Checkpoint
* Add key/key.go for key.New
* Comments
* Remove more EventID and ScopeID
* Use Handle to describe static objects
* TODOs
* Remove empty file
* Remove singletons
* Update TODOs
* TODO about map update
* Make stats package option aliases (like key has)
* Rename experimental/streaming
* streaming SDK builds w/ many TODOs
* Get the examples building
* Tidy up metric API / add interface check
* Remove logic from the registry; this is now a placeholder
