Converts input stats estructure to the internal structure. In converts from:
name: [{path: '', methods: []}]

To:
path: { methods: [], name: ''}

It also supports the following format:

name: {path: '', method: ''}
function generateStatsdRoutes(stats) {
  var result = {};
  Object.keys(stats).forEach(function(name) {
    var routes = stats[name];
    if (!(routes instanceof Array)) {
      routes = [routes];
    }
    routes.forEach(function(route) {
      result[route.path] = {
        name: name,
        methods: route.method ? route.method : route.methods
      };
    });


  });
  return result;
}