By Steve Scherer OTTAWA (Reuters) -Canada is joining a group to boost economic ties with Pacific island nations that already includes the United States, Australia, Japan, New Zealand and the United Kingdom, according to a draft speech Foreign Minister Melanie Joly will deliver on Thursday. “We’re pleased to be part of early discussions to help frame this initiative, and I am happy to announce Canada will be joining as a full member,” Joly will tell diplomats during the United Nations General Assembly in New York, according to a draft of her speech seen by Reuters. “Canadians will be impacted b…