[Feature] Telemetry Support

[Suiram1701]

I would like to add telemetry support to Discord.NET through Activities and Meters.
This would mainly affect the WebSocket and Interactions project. A few sample telemetry datas I would like to add are:

Activities:

• Socket events
• interactions
• Long running logic

Metrics:

• WebSocket latency
• Shards
• Socket events
• executed interactions (e.g. duration, result, ...)
• Maybe a general overview of all requests sent by clients.

For integration with for instance OpenTelemetry I would create there an instrument package which would provides methods to enable these telemetries.

If this idea gets approved I would really like to implement this myself and make one or more PRs for this.

[Suiram1701]

For integration with for instance OpenTelemetry I would create there an instrument package which would provides methods to enable these telemetries.

I've asked an OpenTelemetry maintainer about this and it would be better to create a package like Discord.Net.OpenTelemetry here if it will be fine.