protected void addFilter(AncillaryFilter<T> filter) {
		filter.addFilterChangedListener(filterChangedListener);
		ancillaryFilters.add(filter);
		dialogModel.addFilter(filter);
	}
Returns true if any of the filters managed by this dialog are not in their default state.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/filters/AncillaryFilterDialogComponentProvider.java