@Override
	public String toString() {
		StringBuilder buf = new StringBuilder();
		for (FieldRange range : ranges) {
			buf.append(range.toString());
		}
		return buf.toString();
	}
Insert all fields in the ranges in the given field selection from this one.
@param selection the field selection fields to add to this field selection.
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/support/FieldSelection.java