public static Iterable<DomainFolder> descendantFolders(DomainFolder folder) {
		return () -> new DomainFolderIterator(folder);
	}
Returns a {@link Iterable} sequence of all the {@link DomainFolder}s that exist under
the specified {@link DomainFolder folder}.
@param folder
@return
Ghidra/Framework/Project/src/main/java/ghidra/framework/model/ProjectDataUtils.java