By Kate Abnett BRUSSELS (Reuters) -European Union countries bracing for further cuts in Russian gas supply approved a weakened emergency plan to curb demand on Tuesday after striking compromise deals to limit the reductions for some countries. Europe faces an increased gas squeeze from Wednesday, when Russian’s Gazprom has said it would cut flows through the Nord Stream 1 pipeline to Germany to a fifth of capacity. With a dozen EU countries already facing lower Russian supplies, Brussels is urging member states to save gas and store it for winter for fear Russia will completely cut off flows i…