"Application Installed" event triggers without advertisingId raise condition #194

Team,

  When instantiating the Analytics class with trackApplicationLifecycleEvents using the plugin PluginIdfa, the "Application Installed" event is triggered without the ATT prompt information (i.e advertisingId) IF the user waits too much to decide for a selection in the prompt. If the user allows the prompt quickly, the data gets passed to the event but if they delay the ALLOW decision, the "Application Installed" event is triggered without the ATT data.

  This could be workaround by manually requesting tracking authorization (requestTrackingAuthorization) before initializing the Analytics class but in my mind the SDK should handle this automatically, sort of await the decision of the prompt before sending the lifecycle events.

  If I'm not mistaken, I think the issue might be around the fact this is not awaitable (you can't in the constructor but this is probably why)

Regards,
Ángel