CameraComponent 를 추가하다.

카메라 컴포넌트를 추가해서 , CameraBoom 에 붙였다.

// Create a Foolow Camera
	FollowCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("FollowCamera"));
	// Attach camera to end of
	FollowCamera->SetupAttachment(CameraBoom, USpringArmComponent::SocketName);
	// Camera doesn't rotate relative to arm
	FollowCamera->bUsePawnControlRotation = false;