Added another small thing to todo.org
Added another small thing to todo.org

i.e. lattice io for csv and dot.

Signed-off-by: Daniel Borchmann <25857343a15bf1edafebc2912e82ecf775c585c1@mailbox.tu-dresden.de>

exot/conexp-clj,Lobage/conexp-clj,fcatools/conexp-clj,exot/conexp-clj,Lobage/conexp-clj,exot/conexp-clj,fcatools/conexp-clj,exot/conexp-clj,Lobage/conexp-clj,fcatools/conexp-clj,fcatools/conexp-clj,Lobage/conexp-clj,fcatools/conexp-clj,exot/conexp-clj