SDK Observability #4453

Is your feature request related to a problem?

We want to be able to monitor (with metrics) whether or not records (logs, spans, metrics) being sent by exporters are being successfully exporter, the durations and the error code (if erroneous).

Describe the solution you'd like

SDK related metrics are defined in sem conv. We can use the metrics api to create instruments to represent actions taken by the SDK.

Java has implemented something similar for their BSPs.
Go issue: open-telemetry/opentelemetry-go#2547

Describe alternatives you've considered

No response

Additional Context

No response

Would you like to implement a fix?

None