Elasticsearch instrumentation adapter

[mwear]

Convert Datadog instrumentation for Elasticsearch to OpenTelemetry.

See

• [Datadog porting guide](https://github.com/open-telemetry/opentelemetry-ruby/blob/master/adapters/datadog-porting-guide.md )
• Semantic Conventions
• Datadog implementation

[mmontalvo]

Hi 👋 ! Just wanted to know if there is any update regarding this issue, and if not, happy to help!

[arielvalentin]

@mmontalvo please join in the fun!

1. Open a Draft PR and reference this issue so we know there is a WIP
2. If you have questions about the semantic conventions or porting guide ask them via this issue or join the the #otel-ruby channel in cloud-native.slack.com
3. The maintainers will review the PR, and when they approve it, one of them will merge it.
4. 🥳

[mmontalvo]

Thanks @arielvalentin! Just joined the Slack channel 👍

[fbogsany]

Thanks @mmontalvo - no updates on this yet - we'd ❤️ your contributions! I've assigned this issue to you.

[mmontalvo]

Thanks @fbogsany!

[fbogsany]

@mmontalvo are you still working on this?

[mmontalvo]

Hi @fbogsany, sorry I haven't made any update yet.. Yes, still working on this 🙂 I am planning to have a PR to discuss this week.

[github-actions[bot]]

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