Enable forwarding input events manually.

[pirogronian]

Enable forwarding events manually and option to not intercept event handlers by Slab. It can be usefull if handlers are altered by other code for some reason.

[flamendless]

Thanks for the PR. Checking on mobile so it's possible that I may miss something. I'll request some minor changes. Slab.Initialize should explicitly have the DontInterceptHandlers parameter (2nd parameter). Default logic if no 2nd param passed (nil or false) is to do the manual forwarding.

[pirogronian]

Default logic if no 2nd param passed (nil or false) is to do the manual forwarding.

Are you sure about that? It will break backward compatibility, as legacy behaviour is to intercept handlers automatically.

[flamendless]

Oh wait yeah. Keep backwards compatibility, I'll adjust it for the v1.0.0 instead since that will have breaking changes