New procedure support procedure for the Runtime Library tabset widget. The tabs are similar to menu items and also the interface follows the menu convention. The exception might be that no "type" is supported for the add command -- this is a possible point of change (incompatible).
setselection must be added to the additional code section ... which is done here.
Reimplemented:04/03/2007, roger -- dumper & simplified. Uses clearOptions to generate the properties.
Fixmes :See if the generated code is still valid -- might need opget calls... as does menu.
Revision : 08/01/2008, Roger -- precondition added