initializeCAccessible

Calls sun.lwawt.macosx.CAccessible.getCAccessible(Accessible) on the given accessible object; does nothing if running on a non-Mac platform or in a JVM where there is no CAccessible class.

Ideally, this and nativeInitializeAccessible should be in Compose, not Skiko. Unfortunately, Compose doesn't currently allow native code, and implementing it via reflection is not possible due to java.desktop module access restrictions:

class androidx.compose.ui.platform.a11y.AccessibilityKt cannot access class sun.lwawt.macosx.CAccessible (in module java.desktop) because module java.desktop does not export sun.lwawt.macosx to unnamed module

As such, this function is not to be considered public Skiko API.