/// <summary>
/// Get a substring of this ConsoleString starting at the given index and with the given length.
/// </summary>
/// <param name="start">the start index.</param>
/// <param name="length">the number of characters to return</param>
/// <returns>A new ConsoleString representing the substring requested.</returns>
public ConsoleString Substring(int start, int length)
{
ConsoleString ret = new ConsoleString();
for (int i = start; i < start + length; i++)
{
ret.Add(this[i]);
}
return(ret);
}
