By Andy Silvester High-tax, high-drama, and impossible to predict: welcome to Britain in 2022. God help anybody trying to drum up foreign investment onto these shores at the minute. Forget being sure about what the tax code might look like in a year’s’ time – at the rate we’re currently moving, it’s hard to predict what it’ll be tomorrow morning. There is a very good argument that, considering the mess made by former Chancellor Kwasi Kwarteng, Bank Governor Andrew Bailey and others over the past few months, Jeremy Hunt had no choice but to row back on all elements of the mini budget. Certainly…