Sentry Structured Logging for Godot

[AbhiPrasad]

https://develop.sentry.dev/sdk/telemetry/logs/

Sentry now has support for structured logging. Let's add it to the Godot SDK!

1. Define the logs protocol and log envelope item in the SDK
2. Add the Public API (SDK options and methods) as per the docs
3. Make sure the the SDK follows the documented behavior
4. Attach default attributes to the SDK as per docs
5. Instrument default godot loggers/console output to generate logs
6. Add docs for the SDK in docs.sentry.io

[linear]

GODOT-121