HARTFORD, Conn. — Two immigrant children detained in Connecticut and their parents were reunited and freed Monday after having been separated during an asylum attempt at the U.S.-Mexico border under the Trump administration’s “zero-tolerance” immigration policy, according to a lawyer for the children. Government officials brought the mother of the 14-year-old girl from El Salvador and father of the 9-year-old boy from Honduras to Connecticut from Texas after granting them parole during deportation proceedings, said Michael Wishnie, a Yale Law School professor who is representing the children. The children had been detained by a government contractor in Groton.