feat(kmp): Add generic log APIs with explicit level parameter

[buenaflor]

📜 Description

Adds a few generic log apis that help bridge the gap between logging libraries such as Kermit.

💡 Motivation and Context

Implements #518

💚 How did you test it?

Unit tests, manually

📝 Checklist

You have to check all boxes before merging:

• I reviewed the submitted code.
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.

🔮 Next steps

[buenaflor]

@sentry review

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

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