SUNROCK: SteamVR Knuckles Support for UE4

[RuneBerg]

@mordentral

You don’t need to hard code in new inputs anymore with the beta input pathway, it will literally let you bind anything to any input event that you make in engine.

HI @mordentral - are you referring to an Epic UE (non-public) beta or in vr-dev, regarding the auto-generation of controller bindings for SteamVR (vs stubs) ?