Add CoroutineExceptionHandler

[lcian]

📜 Description

Adds a CoroutineExceptionHandler, similar to UncaughtExceptionHandler for exceptions thrown in coroutines.
It can be used together with SentryContext when launching coroutines.

💡 Motivation and Context

Closes #1524
I have tried https://github.com/Anamorphosee/stacktrace-decoroutinator as well but it doesn't really improve the stack trace and also only supports being enabled using a plugin in Android.

💚 How did you test it?

Unit tests and manual test in the UI triggered by button in Android app

📝 Checklist

• 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.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

Update the docs

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	388.40 ms	398.72 ms	10.32 ms
Size	1.58 MiB	2.21 MiB	646.60 KiB

[lcian]

This is how the issue and stack trace look like when running it from the sample app with an intermediate function, like so:

    fun throwInCoroutine() {
        GlobalScope.launch(SentryContext() + SentryCoroutineExceptionHandler()) {
            someFunction()
        }
    }

    fun someFunction() {
        throw RuntimeException("Exception in coroutine")
    }

[lcian]

I think this behavior also happens in some of our other integrations for async stuff, right?