By Andreas Rinke and Miranda Murray BERLIN (Reuters) -German farmers kicked off a week of nationwide protests against subsidy cuts on Monday, blocking roads with tractors and piling misery on Chancellor Olaf Scholz’s coalition as it struggles to fix a budget mess and contain rising far-right forces. Convoys of tractors and trucks gathered on roads in sub-zero temperatures in nearly all 16 federal states, while protesters clashed with police and leading politicians warned that the unrest could be co-opted by extremists. The protests have forced Scholz’s unpopular government into a tricky balanc…