NEW YORK — A dozen students at Brooklyn’s Chabad Lubavitch World Headquarters were arrested as they tried to stop efforts to block a secret illegal tunnel they had dug in a bizarre attempt to expand the house of worship, officials said Tuesday. Police were called to the famed Orthodox headquarters on Eastern Parkway near Kingston Avenue in Crown Heights around 6 p.m. Monday when several Orthodox students began breaking through a cement sanctuary wall with hammers. Earlier in the day, Chabad administrators ordered the tunnel the students were trying to link to a basement study hall be sealed. S…