feat: otlp logger exporter

[yuzurihaaa]

Which problem is this PR solving?

1. Continuation of feat: logger exporter ConsoleLogRecordExporter and InMemoryLogRecordExporter #211
2. This PR is specific for OTLP log exporter.

Fixes # (issue)

Short description of the change

1. OTLPLogExporter feature

How Has This Been Tested?

1. Unit test

Checklist:

• Unit tests have been added
• Documentation has been updated

[dustinlessard-wf]

Hi @yuzurihaaa
Thank you for taking the time to contribute to this project. We really appreciate the effort you put into opening this pull request.
I want to be transparent about the state of the repository: we have not been actively maintaining this codebase, and we do not currently have the bandwidth to properly review, test, and support external contributions at the standard they deserve.
For that reason, we’re going to close this pull request. This is not a reflection on the quality or value of your contribution. Rather, it reflects our current inability to responsibly vet and merge changes into the project.
We are also exploring a path to transfer ownership or stewardship of the project outside of our company, so that it can hopefully have a more active and sustainable future. Until that direction is clearer, we do not want to create a misleading impression that the repository is actively maintained or that we can support merged changes going forward.
Thank you again for your contribution and for your interest in improving the project. We’re sorry we were not able to engage with your pull request in the way it deserved.