Merge branch 'refactor/cave_overlay' into 'dev/5.3'

refactor(cave): Adjust Cave Overlay to new VirtualRealityPawn, Livelink and inputs

See merge request vr-vis/VR-Group/unreal-development/plugins/rwth-vr-toolkit!44

Source/RWTHVRCluster/Private/CAVEOverlay/CAVEOverlay.cpp

-// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
-
-#include "CAVEOverlay/CAVEOverlay.h"
-
-void FCAVEOverlay::Register()
-{
-	On_Post_World_Initialization_Delegate.BindRaw(this, &FCAVEOverlay::OnSessionStart);
-	SessionStartDelegate = FWorldDelegates::OnPostWorldInitialization.Add(On_Post_World_Initialization_Delegate);
-}
-
-
-void FCAVEOverlay::Unregister() const
-{
-	FWorldDelegates::OnPostWorldInitialization.Remove(SessionStartDelegate);
-}
-
-void FCAVEOverlay::OnSessionStart(UWorld* World, const UWorld::InitializationValues)
-{
-	if (!World->IsGameWorld())
-		return;
-
-	const UCAVEOverlaySettings* Settings = GetDefault<UCAVEOverlaySettings>();
-
-	/* Test if we already spawned a CAVEOverlayController */
-	TArray<AActor*> Actors;
-	UGameplayStatics::GetAllActorsOfClass(World, ACAVEOverlayController::StaticClass(), Actors);
-
-	if ((Settings->DefaultActivationType == DefaultActivationType_ON
-		!= Settings->ExcludedMaps.ContainsByPredicate(
-			[World](const FSoftObjectPath& Map) { return Map.GetAssetName() == World->GetName(); }
-		)) && Actors.Num() == 0)
-	{
-		World->SpawnActor(ACAVEOverlayController::StaticClass());
-	}
-}