* Remove SDK from othttp instrumentation
* Remove dependency on SDK in api/kv pkg
Benchmark the kv package not the SDK here.
* Update api/global benchmarks
Move SDK related tests to SDK where applicable
* Add internal testing SDK implementation
To be used by the API for testing so it does not depend on the actual
SDK.
* Update api/global/internal to use internal/sdk
* Fix lint on sdk/metric benchmark
* Lint internal/sdk
* Merge internal/sdk into api/trace/testtrace
* Update Changelog
* Added support array attributes
* Changed function signature for AsArray attribute
* Fixed code comments for array attributes
* Fixed typos in comments in value.go
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>