The mother of a schizophrenic man fatally shot by a Hub officer in 2016 has filed a federal civil rights suit, saying police and emergency medical technicians were inadequately trained to deal with people with mental health disabilities.Hope Coleman, mother of Terrence J. Coleman, 31, sued claiming her son’s constitutional rights — under the Fourth, Fifth and 14th amendments — were violated as well as his rights under the Americans with Disabilities Act when a Boston police officer fatally shot him on Oct. 30, 2016, the lawsuit says.