LONDON, March 27 : The first quarter of the year comes to an end next week after an extraordinary few months where the world's financial markets have been tossed around at the mercy of geopolitics, with the Iran war wiping $7 trillion off global stocks. Oil prices have seen their second-biggest quarterly rise of the century, Europe's gas prices have almost doubled and global interest rates are suddenly pointing up, rather than down. That combination has left the all-conquering, but energy-