refactor(all): Renames VirtualRealityUtilities to RWTHVRUtilities

...THVRCluster/Private/CAVEOverlay/CAVEOverlayController.cpp

Source/RWTHVRCluster/Private/CaveSetup.cpp

Source/RWTHVRToolkit/Private/Core/RWTHVRGameModeBase.cpp

.../Interaction/Interactors/VRWidgetInteractionComponent.cpp

...t/Private/Pawn/Navigation/ContinuousMovementComponent.cpp

...Toolkit/Private/Pawn/Navigation/MovementComponentBase.cpp

...oolkit/Private/Pawn/Navigation/TeleportationComponent.cpp

...e/RWTHVRToolkit/Private/Pawn/Navigation/TurnComponent.cpp

Source/RWTHVRToolkit/Private/Pawn/VirtualRealityPawn.cpp

Source/RWTHVRToolkit/Private/Utility/RWTHVRUtilities.cpp

Source/RWTHVRToolkit/Public/Utility/RWTHVRUtilities.h