public static ListProperties <T> operator +(ListProperties <T> one, ListProperties <T> two)
        {
            ListProperties <T> result = new ListProperties <T>();

            for (int i = 0; i < one.Count; i++)
            {
                result.Add(one[i]);
            }
            for (int i = 0; i < two.Count; i++)
            {
                result.Add(two[i]);
            }
            return(result);
        }
        public ListProperties <T> Zip(ListProperties <T> objectA)
        {
            ListProperties <T> newList = new ListProperties <T>();

            if (objectA.Count > this.Count || objectA.count == this.Count)
            {
                for (int i = 0; i < this.Count; i++)
                {
                    newList.Add(this[i]);
                    newList.Add(objectA[i]);
                }
            }
            else
            {
                for (int i = 0; i < objectA.Count; i++)
                {
                    newList.Add(objectA[i]);
                    newList.Add(this[i]);
                }
            }
            return(newList);
        }