public boolean containsEntirely(FieldRange range) {
		FieldRange rangeContaining = getRangeContaining(range.start);
		if (rangeContaining == null) {
			return false;
		}
		return range.end.compareTo(rangeContaining.end) <= 0;
	}
Returns true if the all the fields in the layout with the given index are
included in this selection.
@param index index of the layout to test.
@return true if the all the fields in the layout with the given index are
included in this selection.
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/support/FieldSelection.java