AI-for-accounting startup Basis has surged to unicorn status with a new funding round as advances in artificial intelligence rattle the financial services markets.Basis raised $100 million from investors at a $1.15 billion valuation, the company plans to announce Tuesday. Venture capital firm Accel led the round, joined by GV (formerly Google Ventures) and former Goldman Sachs Group Inc. Chief Executive Officer Lloyd Blankfein, as well as existing backers including Khosla Ventures....