Is Canopy Growth closer to entering the U.S. cannabis market?Canopy Growth (CGC 2.41%) is moving ahead with its plans for Canopy USA. After shareholders voted overwhelmingly in favor of its latest growth strategy for the U.S. pot market, the company is ready to take the next steps. Here's a look at what will those steps be, what they mean for investors, and whether these developments make Canopy Growth a better buy moving forward.What's next for Canopy Growth?Now that it has obtained shareholder approval, C ...