By Fakiha Baig THE CANADIAN PRESS MASKWACIS-Leaders from four First Nations in central Alberta say the Pope’s upcoming visit could help the world understand the trauma the residential school system caused to Indigenous people. Pope Francis is scheduled to visit the Maskwacis area, south of Edmonton, as part of his Canadian tour from July 24 to 29. There, he is to meet with First Nations, Metis and Inui groups, and go to the former Ermineskin Indian Residential School site. The visit to Maskwacis is the first scheduled stop during the pontiff’s trip. It signals his desire to highlight the voices of survivors, said Chief Wilton Littlechild, a lawyer and former Truth and Reconciliation Commission member who spent 14 years of his youth in a residential school. “It’s about peaceful coexistence….