private void addIfNotNull(TableFilter<T> filter) {
		if (filter != null) {
			filters.add(filter);
		}
	}
Combines multiple Table Filters into a single TableFilter that can be applied.  All contained
filters must pass for this combined filter to pass.

@param <T> the type of table row objects.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/CombinedTableFilter.java