InputManager: Fix Order and Execution of onPrePointerObservable

[PolygonalSun]

A user on the forum had pointed out that there was an issue with how onPrePointerObservable was handling types and skipping for onPointerObservable. After investigating the areas pointed out by the user and their proposed solutions, we were able to determine that there was an issue with onPrePointerObservable and how it interacted with onPointerObservable.

This PR not only contains the proposed fixes but also changes the order that UP and TAP/DOUBLETAP are executed to reflect a similar order to how PointerEvents are processed (pointerup happens before click).

Forum Link: https://forum.babylonjs.com/t/prepointerobservable-pointertap-fired-after-drag-when-skiponpointerobservable-true/35691/2

[azure-pipelines]

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[azure-pipelines]

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