By Emory Alan Skolkin NASHVILLE, TN — When is the last time you tried a new foreign cuisine or welcomed another culture at your table? Renuka Christoph’s vision is that everyone in Nashville should have affordable and easy access to a multicultural experience. Through her parent company Christoph Communications, she has launched a Passport to the Nations in Our Neighborhood (NiON). The Passport will offer holders one complimentary chef’s sample plate at every participating restaurant, a total 18, over the course of five months. Included among these restaurants are some of the most well-known in Nashville such as Chauhan Ale…