public FrameDescriptorAttribute(int Descriptor, HalfsetKind Halfset)
     : this(Descriptor)
 {
     this.Halfset = Halfset;
 }
 public FrameDescriptorAttribute(int Descriptor, HalfsetKind Halfset)
     : this(Descriptor)
 {
     this.Halfset = Halfset;
 }
 public FrameDescriptorAttribute(int Descriptor)
 {
     this.Descriptor = Descriptor;
     this.Halfset    = HalfsetKind.Uniset;
 }