San Francisco-based Rillet has raised $100 million in Series C financing led by Iconiq, with participation from Sequoia, Andreessen Horowitz, Sequoia Global Equities, Bain Capital Ventures, Oak HC/FT, Battery Ventures, FirstMark, Scale Venture Partners, and Creandum. So far, the financial software company has raised more than $200 million in capital, as it seeks to expand…