(Reuters) – A tumultuous year for financial markets is entering the home straight, with Britain battling a self-inflicted crisis and markets pouring over U.S. jobs data to determine how much of an impact Fed hikes are having on the U.S. economy. Currencies plumbing multi-year lows in Australia and New Zealand are ramping up pressure on policymakers there, and strong showing by incumbent Jair Bolsonaro in Brazil’s elections will see the country heading for a second round later this month. Here’s a look at the week ahead in markets from Kevin Buckland in Tokyo, Ira Iosebashvili in New York, and …