Instrumentation Scope should be identifying

[cijothomas]

Spec newly clarification that Scope attributes are identifying. We need to reflect this for all signals.
https://github.com/open-telemetry/opentelemetry-specification/blob/main/CHANGELOG.md#logs-1

[cijothomas]

Could be change in SDK only? Okay to do this in next to next release 0.28, not in 0.27 to keep 0.27 release scope under control.