Routine to return a list of layers the given sub-detector.
NAME : Name of the sub-detector. Wildcards can be used.
LS : Set of layers in the sub-detector(s). IDET : detector type: 1 : barrel tracking 2 : forward tracking 3 : barrel calorimeter 4 : forward calorimeter
From /ZTXRD/ : LAYNAM, list of layer-names; LAYSET, set of layers with a given name; DETTYP, detector-type for a given name.
none.
(To do Set OR.)