By Suban Abdulla LONDON (Reuters) – British consumer sentiment fell for the first time in three months in January, returning near to historic lows as concerns about the economy and the soaring cost of living tightened the squeeze on household finances, research showed on Friday. Market research firm GfK said its measure of confidence declined 3 points to -45, the third lowest reading since records started in 1974. A Reuters poll of economists forecast a rise to -40 from December’s -42. The GfK index, which is not seasonally adjusted, usually rises in January. Sentiment towards major purchases …