@Override
		public BigInteger map(BigInteger value) {
			return value;
		}
Interface for mapping indexes when the LayoutModel changes. In other words, if the mapping
of layout indexes to some data model changes and you want the {@link FieldPanel} to continue
to display the same model data on the screen, the IndexMapper can be used to convert old
indexes to new indexes.
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/listener/IndexMapper.java