By Andrew Callus PARIS (Reuters) – Representatives of the Paris tourist industry will set off on a world tour next month to reassure visitors and agents that the French capital is safe and open for business after last week’s fatal shootings by Islamist militants. France, which is struggling to get economic growth going, is the most visited country in the world. Almost 85 million foreigners a year support a 150 billion euro (116.72 billion pounds) industry that delivers 7 percent of the nation’s GDP, according to government figures. …