By Charlie Conchie UK pension funds need to start pumping cash into London’s stock market “fast”, the City minister will say today, in another warning shot at the sector as government tries to channel a wave of cash into the City. In a speech to think tank Bright Blue, the economic secretary to the Treasury, Bim Afolami, is expected to say a dearth of investment from pension funds into UK-listed companies is a “challenge” the UK needed to solve if it is to restore the appeal of its public markets. The comments underscore growing frustration in government after Chancellor Jeremy Hunt threatened…