OpenTelemetry Exporter integration with Resource API

[joshfree]

Resource API need to be integrated with exporter code to allow customers to configure cloud extension data like roleName, roleInstance among others
https://github.com/open-telemetry/opentelemetry-specification/blob/master/specification/resource/sdk.md#specifying-resource-information-via-an-environment-variable

Related Azure/azure-sdk-for-js#12880 and Azure/azure-sdk-for-python#15771

[github-actions]

Hi @joshfree, we deeply appreciate your input into this project. Regrettably, this issue has remained inactive for over 2 years, leading us to the decision to close it. We've implemented this policy to maintain the relevance of our issue queue and facilitate easier navigation for new contributors. If you still believe this topic requires attention, please feel free to create a new issue, referencing this one. Thank you for your understanding and ongoing support.