By Emma-Victoria Farr and Holger Hansen FRANKFURT/BERLIN (Reuters) – Hundreds of thousands of people have taken to the streets across towns and cities in Germany this weekend as the country enters a second week of nationwide protests against the right-wing Alternative for Germany (AfD) party. Demonstrations have gained momentum after reports emerged from investigative news website Correctiv of a meeting of right-wing extremists in Potsdam at which migration policies including mass deportations of people of foreign origin were discussed. The AfD, which is polling second in nationwide surveys, h…