* Replace use of old term label with attribute
The specification has unified on the term attribute to describe
key-value pairs. There exist still many hold-overs of the use of the
term label. This updates those uses or deprecates exported types and
functions in favor of renamed forms.
* fix infinite recursion
* Remove backticks from attribute set docs
* Remove LabelFilterSelector entirely
* Remove Metadata.Labels instead of deprecate
* Update changelog with public changes
* Revert OC err msg
* Empty All of the metrics dir
* Add instrument api with documentation
* Add a NoOp implementation.
* Updated to the new config standard
* Address PR comments
* This change moves components to sdk/metrics
The Moved components are:
- metric/metrictest
- metric/number
- metric/internal/registry
- metric/sdkapi
* The SDK changes necessary to satasify the new api
* This fixes the remaing tests.
* Update changelog
* refactor the Noop meter and instruments into one package.
* Renamed pkg.Instruments to pkg.InstrumentProvider
Co-authored-by: Aaron Clawson <MadVikingGod@users.noreply.github.com>
