By Andrea Shalal WASHINGTON (Reuters) -Fiscal measures adopted by Britain will likely increase inequality, a spokesperson for the International Monetary Fund said on Tuesday, urging UK authorities to consider providing more targeted support to affected families and businesses. “We are closely monitoring recent economic developments in the UK and are engaged with the authorities,” the spokesperson said, in response to a query from Reuters after the British pound hit an all-time low amid spiking market concerns. “Given elevated inflation pressures in many countries, including the UK, we do not r…