By Uditha Jayasinghe and Devjyot Ghoshal COLOMBO (Reuters) – Sri Lanka’s new Prime Minister Ranil Wickremesinghe said on Tuesday he will present an interim budget within six weeks, slashing infrastructure projects to re-route funds into a two-year relief programme for the crisis-hit island nation. Wickremesinghe, who took office two weeks ago, warned that inflation would rise as the government gets down to tackling the crisis, and that there could be more protests on the streets. He said he hoped any unrest would not get out of hand, adding that funds would be made available to help the most v…