By Christian Plumb PARIS (Reuters) - A former IT analyst from banking group HSBC who provided prosecutors with data on thousands of accounts said in an interview he hoped a Franco-Spanish tax avoidance probe would widen to other countries. Pursued since 2009 by Switzerland on charges of stealing data from his former employer, Herve Falciani told Reuters he hoped French authorities will team up with prosecutors in countries ranging from Greece to Germany. "The investigations were blocked in various countries due to a lack of knowledge about the objective and the scale of the problem," he said. ...