/// <summary>
/// Reöove a filter from the filter list
/// </summary>
/// <param name="filter"> filter to remove </param>
public void RemoveFilter(CustomFilter filter)
{
Filters.Remove(filter);
}
/// <summary>
/// Add a filter to the filter list
/// </summary>
/// <param name="filter">filter to add</param>
public void AddFilter(CustomFilter filter)
{
Filters.Add(filter);
}