/// <summary>
 /// Returns true if field has predefined values
 /// </summary>
 public static bool HasValuesList(this ProjectFieldViewType self)
 => ((ProjectFieldType)self).HasValuesList();
 /// <summary>
 /// Returns true if price could be entered for field, not for it's values
 /// </summary>
 public static bool SupportsPricingOnField(this ProjectFieldViewType self)
 => ((ProjectFieldType)self).SupportsPricingOnField();