Canada&rsquo;s two biggest pension funds have agreed to partner with LOGOS, a real estate logistics operator, to invest in warehouses in Singapore and Indonesia, betting on demand from the rise of e-commerce and a burgeoning middle class in southeast Asia.<br /> <br /> Canada Pension Plan Investment Board (CPPIB), the top pension fund of the country, said in a statement it will initially commit S$200 million (US$142 million) for an about 48 percent stake in LOGOS Singapore Logistics Venture.&nbsp;