Track composable functions with @SentryTraceable annotation

### Description

Create transactions/spans for `@Composable` functions annotated with `@SentryTraceable`, so we can enrich events that pop up within that composable lifetime. The code to measure that could roughly look like this:
```kotlin
DisposableEffect(Unit) {
Log.e("SENTRY", "ENTERED COMPOSITION")
onDispose {
Log.e("SENTRY", "LEFT COMPOSITION")
}
}
```

Would require bytecode manipulation through SAGP.