public bool Equals(PointCounterHistoryItem <TPoint> other) => PointCounts.Equals(other.PointCounts) && ServiceRight == other.ServiceRight;
public bool Equals(GameCounterHistoryItem other) => EqualityComparer <IPointCounter> .Default.Equals(Counter, other.Counter) && GameCounts.Equals(other.GameCounts) && ServiceRight == other.ServiceRight;